Assertion: falcon | /r/HasProperty | perched on block
Facets:
Source sentences:
text: Falcons (the long-wing family of raptors) are tethered perched on a block; large owls (during training only) and short-winged and broad-winged hawks are tethered to a bow perch or round perch, when not allowed to fly free in their mews, an Old English word for a raptor's chamber.