Assertion: trampoline's spring | /r/AtLocation | jumping mat
Facets:
value: securely
type: MANNER
value: for added safety
type: PURPOSE
Source sentences:
text: The entire trampoline is enclosed by a sturdy net to prevent any falls, and 36 galvanized springs covered with PP are attached to the jumping mat for added safety.
text: The Merax comes with 72 galvanized springs securely attached to the jumping mat that offers impressive bounce.