SAN FRANCISCO, Sept 25 Video gamers who live-stream their matches online and the throngs of fans who tune in daily to watch them swarmed a first-of-its kind convention in San Francisco on Friday, as interest swells in the medium of online video game broadcasting.
What is the relationship between 'gamers' and 'video game' in the context of the input sentence.
Options: business division, stock exchange, director/manager, product/material produced