Assertion: rib's bone | /r/HasProperty | connected to back bone
Facets:
Source sentences:
text: The bones that are connected to the sternum directly are called true ribs, and the bones that are connected to the sternum indirectly, through the seventh bone, are called false ribs (eighth, ninth, and tenth bones), and the bones which are not connected to the sternum, and is connected to the back bone, are called floating ribs.