Russian Prime Minister Dmitry Medvedev, left, and Armenian President Serzh Sargsyan at their meeting in Yerevan.

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Russian Prime Minister Dmitry Medvedev, left, and Armenian President Serzh Sargsyan at their meeting in Yerevan.

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Russian Prime Minister Dmitry Medvedev, left, and Armenian President Serzh Sargsyan at their meeting in Yerevan.

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Russian Prime Minister Dmitry Medvedev, left, and Armenian President Serzh Sargsyan at their meeting in Yerevan.

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April 7, 2016. Russian Prime Minister Dmitry Medvedev during a joint press conference with his Armenian counterpart Ovik Abraamyan following bilateral talks in Yerevan.

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April 7, 2016. Russian Prime Minister Dmitry Medvedev (left) and his Armenian counterpart Ovik Abraamyan are seen here after signing joint documents following bilateral talks in Yerevan.

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April 7, 2016. Russian Prime Minister Dmitry Medvedev (third left in the background) and his Armenian counterpart Ovik Abraamyan (third right in the background) attend the signing of joint documents following bilateral talks in Yerevan. Near left is Sergei Donskoi, Minister of Natural Resources and Environment of the Russian Federation.

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April 7, 2016. Russian Prime Minister Dmitry Medvedev (fourth left in the background) and his Armenian counterpart Ovik Abraamyan (third right in the background) attend the signing of joint documents following bilateral talks in Yerevan. Near left is Alexei Miller, Chairman of Gazprom's Management Committee.

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April 7, 2016. Russian Prime Minister Dmitry Medvedev (left) and his Armenian counterpart Ovik Abraamyan are seen here after a joint press conference following bilateral talks in Yerevan

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April 7, 2016. From left in the background: Russian Prime Minister Dmitry Medvedev and his Armenian counterpart Ovik Abraamyan are seen here during a joint press conference following bilateral talks in Yerevan.

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April 7, 2016. Russian Prime Minister Dmitry Medvedev (left) and his Armenian counterpart Ovik Abraamyan are seen here during the signing of joint documents following bilateral talks in Yerevan

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April 7, 2016. Russian Prime Minister Dmitry Medvedev (left) and his Armenian counterpart Ovik Abraamyan are seen here during the signing of joint documents following bilateral talks in Yerevan.

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April 7, 2016. Russian Prime Minister Dmitry Medvedev (left) is seen here during Russian-Armenian talks in Yerevan Right: Maxim Sokolov, Russian Minister of Transport.

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Russian Prime Minister Dmitry Medvedev (second left) and his Armenian counterpart Ovik Abraamyan attending bilateral talks in Yerevan, April 7, 2016. From right: Russia's Mikhail Men, Minister of Construction and Amenities, and Maxim Sokolov, Minister of Transport.

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Russian Prime Minister Dmitry Medvedev (fifth left) and his Armenian counterpart Ovik Abraamyan (fourth right) participating in bilateral talks in Yerevan, April 7, 2016.

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April 7, 2016. Russian Prime Minister Dmitry Medvedev seen on the Commemorative Alley of the Tsitsernakaberd Memorial to Armenian Genocide Victims, watering the tree planted by the Russian president in the course of his official visit in 2008.

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Russian Prime Minister Dmitry Medvedev (center, foreground) seen on the Commemorative Alley of the Tsitsernakaberd Memorial to Armenian Genocide Victims, April 7, 2016.

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Russian Prime Minister Dmitry Medvedev attending the ceremony of laying flowers to the Memorial of Armenian genocide victims, April 7, 2016.

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Russian Prime Minister Dmitry Medvedev (left, foreground) attending the ceremony of laying flowers to the Memorial of Armenian genocide victims, April 7, 2016.

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Russian Prime Minister Dmitry Medvedev attending the ceremony of laying flowers to the Memorial of Armenian genocide victims, April 7, 2016.

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Russian Prime Minister Dmitry Medvedev (fourth left) and his Armenian counterpart Ovik Abraamyan (fifth left) attending the official welcome ceremony in the Zvartnots airport, April 7, 2016.

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Russian Prime Minister Dmitry Medvedev attending the official welcome ceremony in the Zvartnots airport, April 7, 2016.

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From right, foreground: Russian Prime Minister Dmitry Medvedev and his Armenian counterpart Ovik Abraamyan attending the official welcome ceremony in the Zvartnots airport, April 7, 2016.

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Center, background, from left: Russian Prime Minister Dmitry Medvedev and his Armenian counterpart Ovik Abraamyan attending the official welcome ceremony in the Zvartnots airport, April 7, 2016.

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Center, background, from left: Russian Prime Minister Dmitry Medvedev and his Armenian counterpart Ovik Abraamyan attending the official welcome ceremony in the Zvartnots airport, April 7, 2016.

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Russian Prime Minister Dmitry Medvedev (right, foreground) attending the ceremony of laying flowers to the Memorial of Armenian genocide victims, April 7, 2016.

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Russian Prime Minister Dmitry Medvedev (left) meeting with his Armenian counterpart Ovik Abramyan in Yerevan, November 7, 2016.

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Russian Prime Minister Dmitry Medvedev (left) meeting with his Armenian counterpart Ovik Abramyan in Yerevan, November 7, 2016.

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