What is the relationship between ACCIONA and infrastructure in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Even in the worst of the current crisis, we have been able to evidence the appetite for green energy for transformative infrastructure solutions and how ACCIONA can take advantage of these opportunities.

Answer: industry