Assertion: locomotive's number | /r/CapableOf | lose the prefix
Facets:
Source sentences:
text: In 1931 the fleet was re-numbered by dropping all prefixes, leaving E-prefixed numbers unchanged, adding 1000 to A-prefixed numbers and 2000 to B-prefixed ones, an exception being the Z-class 0-8-0 shunters whose numbers A950-A957 only lost the prefix, with no addition.