until its final minutes this is a perceptive study of two families in crisis -- and of two girls whose friendship is severely tested by bad luck and their own immaturity . 
(ROOT (S (PP (IN until) (NP (PRP$ its) (JJ final) (NNS minutes))) (NP (DT this)) (VP (VBZ is) (NP (NP (DT a) (JJ perceptive) (NN study)) (PP (PP (IN of) (NP (NP (CD two) (NNS families)) (PP (IN in) (NP (NN crisis))))) (, --) (CC and) (PP (IN of) (NP (NP (CD two) (NNS girls)) (SBAR (WHNP (WP$ whose) (NN friendship)) (S (VP (VBZ is) (ADVP (RB severely)) (VP (VBN tested) (PP (IN by) (NP (NP (JJ bad) (NN luck)) (CC and) (NP (PRP$ their) (JJ own) (NN immaturity))))))))))))) (. .)))
(ROOT (S (PP (IN ) (NP (PRP$ ) (JJ ) (NNS ))) (NP (DT )) (VP (VBZ ) (NP (NP (DT ) (JJ ) (NN )) (PP (PP (IN ) (NP (NP (CD ) (NNS )) (PP (IN ) (NP (NN ))))) (, ) (CC ) (PP (IN ) (NP (NP (CD ) (NNS )) (SBAR (WHNP (WP$ ) (NN )) (S (VP (VBZ ) (ADVP (RB )) (VP (VBN ) (PP (IN ) (NP (NP (JJ ) (NN )) (CC ) (NP (PRP$ ) (JJ ) (NN ))))))))))))) (. )))