Assertion: sacrum | /r/CapableOf | begin as five separate vertebrae
Facets:
Source sentences:
text: The sacrum begins as five separate vertebrae, but they later fuse together to form one sacrum bone.
text: The sacrum begins as five separate vertebrae, but they later fuse together to form one sacrum bone.
text: The sacrum begins as five separate vertebrae, which later fuse into one bone during adulthood.