( ( In fact ) ( , ( ( ( just ( a ( small amount ) ) ) ( of sunlight ) ) ( is ( ( needed ( for ( the body ) ) ) ( to ( manufacture ( vitamin D. ) ) ) ) ) ) ) )
(ROOT (S (PP (IN In) (NP (NN fact))) (, ,) (NP (NP (RB just) (DT a) (JJ small) (NN amount)) (PP (IN of) (NP (NN sunlight)))) (VP (VBZ is) (VP (VBN needed) (PP (IN for) (NP (DT the) (NN body))) (S (VP (TO to) (VP (VB manufacture) (NP (NNP vitamin) (NNP D.)))))))))
In fact, just a small amount of sunlight is needed for the body to manufacture vitamin D.
(ROOT (S (S (NP (NNS Vitamins)) (VP (VBP are) (NP (NP (DT the) (JJ organic) (NNS compounds)) (SBAR (IN that) (S (NP (DT the) (NN body)) (VP (VBZ needs) (PP (IN in) (NP (JJ small) (NNS amounts))) (S (VP (TO to) (VP (VB function) (ADVP (RB properly))))))))))) (: ;) (S (NP (NNS humans)) (VP (VBP need) (NP (CD 13) (JJ different) (NNS ones)))) (. .)))