Given phrases that describe the relationship between two words/phrases as options, extract the word/phrase pair and the corresponding lexical relationship between them from the input text. The output format should be "relation1: word1, word2; relation2: word3, word4". Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Rosneft Chief Executive Igor Sechin on Friday said that Russia can increase oil production up to 700 million tonnes per year (14 million barrels per day) and export 300 billion cubic metres of gas to China a year.

Answer: chief_executive_officer: Rosneft, Igor Sechin; director_/_manager: Rosneft, Igor Sechin