Refer to the input text as context and select the correct relationship between 'gamers' and 'video game' from the available options.
Options: product/material produced, business division, director/manager, stock exchange

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.
product/material produced