Assertion: bone marrow | /r/HasProperty | spongy tissue
Facets:
Source sentences:
text: Bone marrow is a spongy tissue present within the central cavity of many large bones of the body that has been shown to perform many important regenerative functions.
text: Marrow is a spongy material found inside most of the bones in the body.
text: Bone marrow is the spongy tissue inside some of the bones in the body, including the hip and thigh bones.