Assertion: crawler | /r/CapableOf | go into service
Facets:
Source sentences:
text: Not his happiest time."The problems were replaced with pride as the two crawlers went into service, but it's doubtful that the crawlers' designers could ever have imagined their creation would still be moving launch vehicles into the 21st century as the Space Shuttle Program draws to a close."When they built the crawler, they overbuilt it, and that's a great thing because it's able to last all these years.