Assertion: spark plug | /r/HasProperty | isolated by a porcelain insulator
Facets:
value: electrically
type: MANNER
value: from a central electrode
type: OTHER
Source sentences:
text: A spark plug has a metal threaded shell, electrically isolated from a central electrode by a porcelain insulator.
text: A spark plug has a metal threaded shell, electrically isolated from a central electrode by a porcelain insulator.