( ( It ( can ( be ( a ( familial disorder ) ) ) ) ) ( , ( ( ( ( ( ( can ( occur sporadically ) ) , ) or ) ( associated ( with Williams ) ) ) ( ( syndrome ( -LRB- ( WS -RRB- ) ) ) ( which ( is ( ( a ( neurodevelopmental disorder ) ) ( affecting ( ( ( connective tissue ) and ) ( the ( central ( nervous system ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (SINV (S (NP (PRP It)) (VP (MD can) (VP (VB be) (NP (DT a) (JJ familial) (NN disorder))))) (, ,) (VP (VP (MD can) (VP (VB occur) (ADVP (RB sporadically)))) (, ,) (CC or) (VP (VBN associated) (PP (IN with) (NP (NNP Williams))))) (NP (NP (NN syndrome)) (PRN (-LRB- -LRB-) (NP (NNP WS)) (-RRB- -RRB-)) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (NP (NP (DT a) (JJ neurodevelopmental) (NN disorder)) (VP (VBG affecting) (NP (NP (JJ connective) (NN tissue)) (CC and) (NP (DT the) (JJ central) (JJ nervous) (NN system))))))))) (. .)))
It can be a familial disorder, can occur sporadically, or associated with Williams syndrome (WS) which is a neurodevelopmental disorder affecting connective tissue and the central nervous system.
(ROOT (S (NP (JJ Neurodevelopmental) (NNS disorders)) (VP (VBP happen) (SBAR (WHADVP (WRB when)) (S (NP (NP (NN development)) (PP (IN of) (NP (JJ nervous) (NN system)))) (VP (VBZ is) (ADJP (JJ disturbed)))))) (. .)))