Assertion: pilot light's flame | /r/HasProperty | proven
Facets:
Source sentences:
text: If you find a way to manually get gas flowing to the pilot light, and light it, you will have to manually hold the gas on for about 30 seconds -2 minutes so that the flame is "proven" (detected by the control system).
text: A wire brush cleaning might clear them, but then once again you will have to manually get the pilot going until the flame is "proven".