Assertion: class tram | /r/HasProperty | built by comeng
Facets:
value: between 1984
type: TEMPORAL
value: between 1987
type: TEMPORAL
Source sentences:
text: The Z-class trams, built by Comeng, were introduced in 1975.
text: The A-class trams were built between 1984 and 1987 by Comeng.