Assertion: otter's hair | /r/CapableOf | form keel
Facets:
value: on the upper and lower surfaces
type: LOCATION
Source sentences:
text: The giant otter shrew has a vertically flat, finely furred tail; the Ruwenzori’s is round with stiff hairs forming keels on the upper and lower surfaces; and that of the Nimba otter shrew is simply round.