Assertion: reduced peristome | /r/CapableOf | manoeuvre the animal
Facets:
value: to sit astride the pitcher orifice
type: PURPOSE
Source sentences:
text: The highly reduced peristome enables T. montana to grip the pitcher rim without slipping, while the shape of the mouth and orientation of the lid impede feeding from the side or rear, thereby manoeuvring the animal to sit astride the pitcher orifice, maximizing the likelihood that the animal's hindquarters are positioned over the orifice while it feeds (figure 2).