( Osteoporosis ( ( is ( ( the disease ) ( of ( ( weak ( , ( porous bones ) ) ) ( caused ( by ( ( ( ( ( ( ( ( ( ( inadequate calcium ) , ) ( family history ) ) , ) inactivity ) , ) ( certain medications ) ) , ) and ) ( lifestyle choices ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Osteoporosis)) (VP (VBZ is) (NP (NP (DT the) (NN disease)) (PP (IN of) (NP (NP (JJ weak) (, ,) (JJ porous) (NNS bones)) (VP (VBN caused) (PP (IN by) (NP (NP (JJ inadequate) (NN calcium)) (, ,) (NP (NN family) (NN history)) (, ,) (NP (NN inactivity)) (, ,) (NP (JJ certain) (NNS medications)) (, ,) (CC and) (NP (NN lifestyle) (NNS choices))))))))) (. .)))
Osteoporosis is the disease of weak, porous bones caused by inadequate calcium, family history, inactivity, certain medications, and lifestyle choices.
(ROOT (S (NP (RB Too) (JJ little) (NN calcium)) (VP (MD can) (VP (VB cause) (NP (DT the) (NN disease) (NN osteoporosis)))) (. .)))