The heart muscle needs this to properly contract and keep the heart pumping blood to the rest of the body.
(The heart muscle; needs; this; to properly contract and keep the heart pumping blood to the rest of the body) Context(The heart muscle needs,List([0, 22))):(The heart muscle; needs this to properly contract; ) Context(The heart muscle needs,List([0, 22))):(The heart muscle; needs this to keep; the heart pumping blood; to the rest of the body)
The heart muscle needs,List([0, 22)) The heart muscle needs,List([0, 22))
The heart muscle The heart muscle The heart muscle
needs needs this to properly contract needs this to keep
this to properly contract and keep the heart pumping blood to the rest of the body
the heart pumping blood to the rest of the body