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))) (. .)))
The only identified organizations were well-known.
( ( The ( ( only identified ) organizations ) ) ( ( were well-known ) . ) )
(ROOT (S (NP (DT The) (ADJP (RB only) (VBN identified)) (NNS organizations)) (VP (VBD were) (ADJP (JJ well-known))) (. .)))