Assertion: locomotive's engine | /r/HasAspect | one pair of wheels
Facets:
value: by arrangement
type: MANNER
value: under the front truck
type: LOCATION
Source sentences:
text: Steam locomotives are usually classified under the Whyte system, that is, by the number and arrangement of the wheels; for example, an engine classified as 2–6–0 has one pair of wheels under the front truck, three pairs of coupled or driving wheels, and no wheels under the trailing truck.