Assertion: fibula's surface | /r/HasProperty | narrow
Facets:
value: in its upper part
type: LOCATION
value: very
type: DEGREE
Source sentences:
text: The posterior surface is narrow, and traversed by a groove running obliquely downward and medialward, and transmitting the tendon of the Flexor hallucis longus.
text: The anterior surface is very narrow in its upper part, where the anterior and medial borders run close together or may become confluent.