All were prominent nationally known organizations.
( All ( ( were ( prominent ( ( nationally known ) organizations ) ) ) . ) )
(ROOT (S (NP (DT All)) (VP (VBD were) (NP (JJ prominent) (ADJP (RB nationally) (JJ known)) (NNS organizations))) (. .)))
Some organizations were obscure.
( ( Some organizations ) ( ( were obscure ) . ) )
(ROOT (S (NP (DT Some) (NNS organizations)) (VP (VBD were) (ADJP (JJ obscure))) (. .)))