Assertion: sponge's skeleton | /r/HasProperty | luffa aegyptiaca
Facets:
Source sentences:
text: The luffa "sponge", also spelled loofah, which is commonly sold for use in the kitchen or the shower, is not derived from an animal but mainly from the fibrous "skeleton" of the sponge gourd (Luffa aegyptiaca, Cucurbitaceae).