( Joints ( ( are ( places ( where ( ( two bones ) ( come together ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Joints)) (VP (VBP are) (NP (NP (NNS places)) (SBAR (WHADVP (WRB where)) (S (NP (CD two) (NNS bones)) (VP (VBP come) (ADVP (RB together))))))) (. .)))
Joints are places where two bones come together.
(ROOT (S (NP (NNS Joints)) (VP (VBP are) (NP (NP (DT the) (NN location)) (SBAR (WHADVP (WRB where)) (S (NP (NNS bones)) (VP (VBP come) (ADVP (RB together))))))) (. .)))
Joints are the location where bones come together.