Assertion: contagious yawning | /r/HasProperty | commonplace
Facets:
Source sentences:
text: Contagious yawning is commonplace.
text: Contagious yawning , in which yawning is triggered involuntarily when we observe another person yawn, is a common form of echophenomena - the automatic imitation of another's words (echolalia) or actions (echopraxia)," the study said.