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.

British Home Secretary Theresa May and French Interior Minister Bernard Cazeneuve visited the tunnel Thursday announced plans for a "substantial" increase of security guards, higher fences, surveillance cameras, floodlighting and infrared detection technology.

Answer: position_held: Theresa May, Home Secretary