Assertion: border collie's dog | /r/CapableOf | become aggressive
Facets:
value: overtly
type: MANNER
value: at times
type: TEMPORAL
Source sentences:
text: It’s a lively dog who can become aggressive at times, but it’s certainly one that will add a lot of fun and colour to your life.
text: If the dog becomes overtly aggressive, vicious, shy, or reticent, the owner should consider hiring a professional trainer as these behaviors are considered to be serious faults by professional breeders.
text: The dogs may startle easily, bark, become anxious or aggressive, or run from the situation and into danger.