Assertion: boiler | /r/HasProperty | taken
Facets:
value: out of service for maintenance
type: CAUSE
value: out of service
type: OTHER
Source sentences:
text: Bottom blowdown valves are often rebuilt or replaced whenever the boiler is taken out of service for maintenance.
text: Bottom blowdown valves are often rebuilt or replaced whenever the boiler is taken out of service for maintenance.
text: A boiler with more than 5 broken stays, or two next to each other, must be taken out of service and the stays replaced.