Assertion: penguin's stance | /r/HasProperty | upright
Facets:
Source sentences:
text: On land, penguins have an upright stance and tend to waddle, hop, or run with their bodies angled forward.
text: On land, penguins use their tails and wings to maintain balance for their upright stance.
text: On land, penguins use their tails and wings to maintain balance for their upright stance.
text: On land, penguins use their tails and wings to maintain balance for their upright stance.