Assertion: slide fastener's pair | /r/HasProperty | 10 of a case
Facets:
Source sentences:
text: The intermediate stringer 1 is interengageable on opposite sides with a pair of outer stringers 5, 6 by means of a pair of sliders 7, 8, respectively, the respective tapes of the outer stringers 5, 6 being sewn to a pair of outer walls 9, 10 of a case.