Assertion: border collie's dog | /r/HasAspect | problem
Facets:
value: frequently
type: TEMPORAL
value: with their sight
type: OTHER
value: with deafness
type: OTHER
Source sentences:
text: Double merle dogs – those homozygous for the merle coloring gene – are more likely to have problems with their sight and with deafness.
text: Researchers have found that dogs with white heads and blue eyes frequently have this problem.