Analyze the relationship between 'ENGIE' and 'SUEZ' within the context of the input sentence.
Options: creator, founded by, location of formation, headquarters location

In Brazil's 13th Bid Round held on October 7, 2015, Alvopetro, in partnership with ENGIE (GDF SUEZ E&P Brasil Participações Limitada), was the successful bidder on four blocks, all located in the Recôncavo Basin, onshore Brazil.
founded by