Assertion: glider's wing | /r/HasProperty | stopped by the peg
Facets:
value: during reversal
type: TEMPORAL
Source sentences:
text: Some methods to achieve this include some sort of one-way door, or using a wingnut with one wing cut off and an adjustable peg on the side of the chassis so that the wing will go freely forward, but then be stopped by the peg during reversal.