Assertion: callus | /r/CapableOf | form on foot
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Calluses usually form on your hands or feet.
text: Calluses and corns often form on bunions , hammer, claw, or mallet toes , or on the bumps caused by rheumatoid arthritis .
text: It may form on the hands or the feet and is usually bumpy.