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.

Prime Minister Narendra Modi , Apple CEO Tim Cook and Microsoft CEO Satya Nadella were among the scores of dignitaries who took to the micro-blogging site to congratulate the IIT Kharagpur alumnus when he was named by Google’s co-founder Larry Page as the next chief executive of the slightly slimmed down internet behemoth.
employer: Satya Nadella, Microsoft