Assertion: doberman's owner | /r/CapableOf | dock tail
Facets:
value: to indicate
type: PURPOSE
Source sentences:
text: In some areas, dogs used for work were not taxed, so the owners of such dogs would dock the tails to indicate that the dog was used for work and not subject to tax.
text: However, to meet the American Kennel Club standards, most breeders and owners tend to crop the ears and dock their tail.