Assertion: spheroid's surface | /r/HasProperty | approximated by ideal oblate ellipsoid
Facets:
value: more precisely
type: DEGREE
value: usually
type: TEMPORAL
value: for the purposes
type: PURPOSE
Source sentences:
text: More precisely, the surface of the Earth is usually approximated by an ideal oblate ellipsoid, for the purposes of defining precisely the latitude and longitude grid for cartography, as well as the "center of the Earth".