Assertion: lizard's rib | /r/HasProperty | extended
Facets:
Source sentences:
text: These lizards are capable of gliding flight; their ribs and their connecting membrane may be extended to create "wings" (patagia), the hindlimbs are flattened and wing-like in cross-section, and a flap on the neck (the gular flag) serves as a horizontal stabilizer and are sometimes used in warning to others.