The sisters say it was inspired by tricky relationships, time on the road and close family ties. (npr.org)
«People who live in single - family homes have a really tricky relationship with city government. (politico.com)
In Ragnarok, we get Thor minus his magic hammer, Mjölnir; the always tricky relationship between Banner and the Hulk; and a minor crisis of conscience for Loki, a bad guy who envies the adulation heaped on good guys. (avclub.com)