( ( In addition ) ( , ( ( other research ) ( ( has ( demonstrated ( that ( ( vitamin K ) ( may ( ( prevent osteoporosis ) ( ( ( ( by ( ( halting ( ( the loss ) ( of calcium ) ) ) ( through ( the urine ) ) ) ) , ) or ) ( in ( ( ( working synergistically ) ( with ( vitamin D ) ) ) ( to ( reduce ( bone loss ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NN addition))) (, ,) (NP (JJ other) (NN research)) (VP (VBZ has) (VP (VBN demonstrated) (SBAR (IN that) (S (NP (NNP vitamin) (NNP K)) (VP (MD may) (VP (VB prevent) (NP (NNS osteoporosis)) (PP (PP (IN by) (S (VP (VBG halting) (NP (NP (DT the) (NN loss)) (PP (IN of) (NP (NN calcium)))) (PP (IN through) (NP (DT the) (NN urine)))))) (, ,) (CC or) (PP (IN in) (S (VP (VBG working) (ADVP (RB synergistically)) (PP (IN with) (NP (NNP vitamin) (NNP D))) (S (VP (TO to) (VP (VB reduce) (NP (NN bone) (NN loss))))))))))))))) (. .)))
In addition, other research has demonstrated that vitamin K may prevent osteoporosis by halting the loss of calcium through the urine, or in working synergistically with vitamin D to reduce bone loss.
(ROOT (S (NP (NP (DT A) (NN diet)) (ADJP (JJ rich) (PP (IN in) (NP (NN calcium) (CC and) (NN vitamin) (NNS d))))) (VP (MD may) (VP (VB reduce) (NP (NP (DT the) (NN risk)) (PP (IN of) (NP (NN osteoporosis) (CC and) (JJ related) (NN bone) (NNS fractures)))))) (. .)))