Assertion: switchblade's blade | /r/HasProperty | inside handle
Facets:
Source sentences:
text: if the blade is inside a handle that is divided into two halves, and each halve is hinged and they both close around the knife, and you can spin it open, that is a butterfly knife also called a balisong
text: if the blade is totally inside the handle and to open it you press a button and a spring pushes the blade straight out the top, that is a switchblade