Assertion: steam engine | /r/CapableOf | begin appearing on ship
Facets:
value: in the early 19th century
type: TEMPORAL
Source sentences:
text: Steam engines first began appearing on ships in the early 19th century and were the primary type of engine used for powered marine travel throughout most of the next 100 years, when diesel engines began to supplant steam engines as the standard for ship propulsion.
text: Steam engines began appearing on ships in the early 19th century.