Assertion: thoroughbred's lineage | /r/HasProperty | cunningham
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Source sentences:
text: As of 2001, 78% of the alleles in the Thoroughbred population are confirmed to be derived from 30 founding horses (27 of them being male), 10 founder females account for 72% of maternal lineages, and a single founder stallion accounts for 95% of paternal lineages (Cunningham, 2001).