Assertion: hub | /r/HasProperty | built
Facets:
value: throughout the whole game
type: TEMPORAL
Source sentences:
text: The HUB is the first unlocked building and it must be built before other buildings become available.
text: Without the HUB Parts, The HUB cannot be constructed, which is a building essential throughout the whole game.
text: Only one HUB can be built, even if the engineer happens to have multiple HUB Parts through any means.