Moreover, it is possible to have questions that require nested case studies.
( Moreover ( , ( it ( ( is ( possible ( to ( have ( questions ( that ( require ( nested ( case studies ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Moreover)) (, ,) (NP (PRP it)) (VP (VBZ is) (ADJP (JJ possible) (S (VP (TO to) (VP (VB have) (NP (NP (NNS questions)) (SBAR (WHNP (WDT that)) (S (VP (VBP require) (NP (JJ nested) (NN case) (NNS studies))))))))))) (. .)))
Also, questions can not require nested case studies.
( Also ( , ( questions ( ( ( can not ) ( require ( nested ( case studies ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Also)) (, ,) (NP (NNS questions)) (VP (MD can) (RB not) (VP (VB require) (NP (JJ nested) (NN case) (NNS studies)))) (. .)))