a sobering and powerful documentary about the most severe kind of personal loss : rejection by one 's mother 
(ROOT (NP (NP (DT a) (ADJP (JJ sobering) (CC and) (JJ powerful)) (NN documentary)) (PP (IN about) (NP (NP (NP (DT the) (ADJP (RBS most) (JJ severe)) (NN kind)) (PP (IN of) (NP (JJ personal) (NN loss)))) (: :) (NP (NP (NN rejection)) (PP (IN by) (NP (NP (PRP one) (POS 's)) (NN mother))))))))
(ROOT (NP (NP (DT ) (ADJP (JJ ) (CC ) (JJ )) (NN )) (PP (IN ) (NP (NP (NP (DT ) (ADJP (RBS ) (JJ )) (NN )) (PP (IN ) (NP (JJ ) (NN )))) (: ) (NP (NP (NN )) (PP (IN ) (NP (NP (PRP ) (POS )) (NN ))))))))