Assertion: subwoofer | /r/HasProperty | expensive
Facets:
Source sentences:
text: When subwoofers first became popular to lovers of organ music in the 1970s, they were exotic and expensive.
text: Subwoofers can be an expensive audio addition and wireless versions are more expensive than standard subwoofers.
text: The subwoofer is normally hidden from the audience and doesn’t need to be a expensive piece of equipment.