Assertion: mandible's surface | /r/CapableOf | extend at the bottom
Facets:
value: to the side face
type: OTHER
value: from a side portion
type: OTHER
Source sentences:
text: 6 and 7 , the upper structural member ( 2 ) has at the bottom face thereof a recess ( 21 ) formed in a groove (a protuberance in the front view), and has at two locations thereof notched surfaces extending from a side portion at the bottom thereof to the side face thereof, namely two triangular elements (female) ( 22 ).