Assertion: wheel tractor | /r/HasProperty | powered by steam engines
Facets:
Source sentences:
text: The first wheel-type tractors, powered by steam engines, appeared in Great Britain and France in 1830; they were used in transportation and for military purposes.
text: The first wheel-type tractors, powered by steam engines, appeared in Great Britain and France in 1830; they were used in transportation and for military purposes.