Assertion: great horned owl | /r/HasProperty | built by harris's hawk
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Source sentences:
text: Great horned owls in the southwest may also use nests in cacti, built by Harris's hawk and red-tailed hawk, as well as large hollows in cacti.
text: Great horned owls within the southwest may use nests in cacti, constructed by Harris’s hawk and red-tailed hawk, in addition to massive hollows in cacti.