Assertion: body's surface | /r/AtLocation | contact
Facets:
value: with each other
type: OTHER
Source sentences:
text: The coefficient value is dependent primarily upon the nature of the surfaces that are in contact with each other.
text: If a red surface and a blue surface are in contact with each other, then a red and a blue line coincide.
text: If a red surface and a blue surface are in contact with each other, then a red and a blue line coincide.