Assertion: dwelling's unit | /r/CapableOf | gain momentum
Facets:
value: since at least the late 1980s
type: TEMPORAL
Source sentences:
text: Although the movement to support the concept of modifying zoning regulations to allow accessory units in single-family districts has been gaining momentum since at least the late 1980s, the recent economic crisis in the U.S. gave the idea a boost.