Assertion: steam engine's boiler | /r/HasProperty | big
Facets:
value: with dozens of thin metal tubes
type: OTHER
value: usually
type: DEGREE
Source sentences:
text: The boiler and furnace for heating water are usually big.
text: The boiler is a big tank of water with dozens of thin metal tubes running through it (for simplicity, we show only one here, colored orange).
text: Due to its big boiler and furnace a steam engine is huge, heavy and clumsy.