GENI organizes teacher workshops for K-12 teachers and assists them in developing geography teaching materials for classroom use.
( GENI ( ( ( ( ( organizes ( teacher workshops ) ) ( for ( K-12 teachers ) ) ) and ) ( ( assists them ) ( in ( ( developing ( geography ( teaching materials ) ) ) ( for ( classroom use ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP GENI)) (VP (VP (VBZ organizes) (NP (NN teacher) (NNS workshops)) (PP (IN for) (NP (NN K-12) (NNS teachers)))) (CC and) (VP (VBZ assists) (NP (PRP them)) (PP (IN in) (NP (NP (VBG developing) (NN geography) (NN teaching) (NNS materials)) (PP (IN for) (NP (NN classroom) (NN use))))))) (. .)))
GENI does not assist teachers at all. 
( GENI ( ( ( does not ) ( ( assist teachers ) ( at all ) ) ) . ) )
(ROOT (S (NP (NNP GENI)) (VP (VBZ does) (RB not) (VP (VB assist) (NP (NNS teachers)) (ADVP (IN at) (DT all)))) (. .)))