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))))))))))))))) (. .)))
It is never necessary to give an explanation for strange information. 
( It ( ( ( is never ) ( necessary ( to ( give ( ( an explanation ) ( for ( strange information ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (ADVP (RB never)) (ADJP (JJ necessary) (S (VP (TO to) (VP (VB give) (NP (NP (DT an) (NN explanation)) (PP (IN for) (NP (JJ strange) (NN information))))))))) (. .)))