Anchor: Two guys are playing music outside while people surround them.
Entailed: Two street musicians are performing, surrounded by an audience.
Contradiction: Two people are making balloon animals as spectators gather.
Contradiction: Two men are sitting on a chair
Contradiction: The Tokugawa government had a problem that needed to be fixed.
Contradiction: The people are walking on the island.
Contradiction: I guess that it is a worthwhile service though I do not think it was common.