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.

Chancellor of the Exchequer George Osborne is preparing to sell shares in RBS as early as September, probably at a loss to the Treasury, as the government seeks to end seven years of ownership and return some of the 45.5 billion-pound bailout to taxpayers.

Answer: position_held: George Osborne, Chancellor of the Exchequer