Where necessary, brief but not cryptic explanations are provided of any information that might seem to be out of the ordinary.
( ( Where necessary ) ( , ( ( ( ( brief ( but not ) ) cryptic ) explanations ) ( ( are ( provided ( of ( ( any information ) ( that ( might ( seem ( to ( be ( out ( of ( the ordinary ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (WHADVP (WRB Where)) (S (ADJP (JJ necessary)))) (, ,) (NP (ADJP (JJ brief) (CONJP (CC but) (RB not)) (JJ cryptic)) (NNS explanations)) (VP (VBP are) (VP (VBN provided) (PP (IN of) (NP (NP (DT any) (NN information)) (SBAR (WHNP (WDT that)) (S (VP (MD might) (VP (VB seem) (S (VP (TO to) (VP (VB be) (ADJP (IN out) (PP (IN of) (NP (DT the) (JJ ordinary))))))))))))))) (. .)))
When it's necessary, a brief but not complex explanation is given for and strange information. 
( ( When ( it ( 's necessary ) ) ) ( , ( ( a ( ( ( brief ( but not ) ) complex ) explanation ) ) ( ( is ( given ( for ( and ( strange information ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (PRP it)) (VP (VBZ 's) (ADJP (JJ necessary))))) (, ,) (NP (DT a) (ADJP (JJ brief) (CONJP (CC but) (RB not)) (JJ complex)) (NN explanation)) (VP (VBZ is) (VP (VBN given) (PP (IN for) (NP (NNP and) (JJ strange) (NN information))))) (. .)))