Take context from the input text and decide on the accurate relationship between '888 Holdings' and 'gambling' from the options provided.
Options: distributed by, location of formation, industry, owner of

Sept 1 (Reuters) - Online gambling firm 888 Holdings stepped up a billion pound battle for Bwin.party Digital Entertainment on Tuesday, submitting a revised takeover proposal as it looks to see off rival interest from GVC Holdings (Other OTC: GMVHF - news ) .
industry