Assertion: car | /r/CapableOf | reach the peak of their development
Facets:
value: with efficient engine designs
type: CAUSE
value: in the early 1930s
type: TEMPORAL
value: with fast-steaming lightweight boilers
type: MANNER
Source sentences:
text: Steam-powered road vehicles, both cars and wagons, reached the peak of their development in the early 1930s with fast-steaming lightweight boilers and efficient engine designs.