Assertion: function's domain | /r/CapableOf | map to same y
Facets:
value: in y.
type: LOCATION
Source sentences:
text: X 1 and X 2 are subsets of X, Y 1 and Y 2 are subsets of Y: for two regions where the function is not injective because more than one domain more than one x in X to map to the same y in Y.