Assertion: local coordinate system | /r/HasProperty | updated in last 50 years
Facets:
value: in order to align it
type: PURPOSE
Source sentences:
text: That is why, the country's local coordinate system had to be updated four times in the last 50 years in order to align it with global coordinates - which, since they are calculated based on global lines of latitudes and longitude, do not shift even when the continents do.