Most plastics conduct electricity when they are hot but are insulators when they cool.)
(Most plastics; conduct; electricity; T:when they are hot but are insulators) (they; are; hot) (they; are; insulators; T:when they cool) (they; cool; )
Most plastics they they they
conduct are are cool
electricity T:when they are hot but are insulators
hot
insulators T:when they cool