What is the relationship between 'Twitter' and 'Microblogging' in the context of the input sentence.
Options: founded by, position held, product/material produced, chairperson

Microblogging company Twitter (Xetra: A1W6XZ - news ) jumped 9.1 percent as the National Football League announced a deal to deliver official content from the American football league on the Twitter platform.
product/material produced