( ( ( The force ) ( of gravity ) ) ( ( is ( ( the same ) ( for ( both bullets ) ) ) ) ; ) )
(ROOT (S (NP (NP (DT The) (NN force)) (PP (IN of) (NP (NN gravity)))) (VP (VBZ is) (NP (NP (DT the) (JJ same)) (PP (IN for) (NP (DT both) (NNS bullets))))) (: ;)))
The force of gravity is the same for both bullets;
(ROOT (S (NP (NNP Gravity) (CC and) (NNP magnetism)) (VP (VBP are) (NP (DT both) (JJ common) (NNS forces))) (. .)))
Gravity and magnetism are both common forces.