COPENHAGEN, July 7 (Reuters) - Investment firms 3i Infrastructure and AMP Capital have agreed to buy Danish shipping company Esvagt for 4.1 billion Danish crowns ($607 million), aiming to tap growing demand for servicing offshore wind farms.
Take context from the input text and decide on the accurate relationship between '3i Infrastructure' and 'Investment' from the options provided.
Options: creator, currency, member of, industry