Assertion: trampoline's spring | /r/HasProperty | attached
Facets:
value: at both ends
type: LOCATION
value: securely
type: MANNER
value: firmly
type: MANNER
Source sentences:
text: Check that the frame is stable and the springs are firmly attached.
text: It uses leaf springs placed under the jumping mat instead of conventional springs attached on the sides.
text: Spring should be intact and securely attached at both ends.