Assertion: railroad's train | /r/CapableOf | enter block
Facets:
Source sentences:
text: When a train enters a block, the metal wheels and axle conduct the circuit as a short cut which bypasses the relay.
text: When a train enters a block, the metal wheels and axle conduct the circuit as a short cut which bypasses the relay.
text: Initially the system required a person at each end of each block to record trains entering and leaving the blocks, and a way for them to communicate with each other.