Assertion: yawning | /r/AtLocation | the fore
Facets:
value: at the same age children
type: TEMPORAL
Source sentences:
text: Yawning also seems to be a sympathy trigger, as contagious yawning, according to certain studies, tends to come to the fore at the same age children start identifying with the emotions of others (around four to five years of age), although autistic children do not tend to show this behavior.