Assertion: thoroughbred's lineage | /r/HasProperty | traced
Facets:
Source sentences:
text: Any horse is considered as Thoroughbred whose lineage can be traced, unbroken, both on the paternal and the maternal side, to horses accepted for registration in the General Stud Book, or can prove some eight or nine crosses of pure blood to trace back for at least a century and to show such performances of its immediate family on the Turf as to warrant the belief in the purity of its blood.