Sun Ra's spaceships did not come, as it were, out of nowhere.
( ( ( Sun ( Ra 's ) ) spaceships ) ( ( ( did not ) ( ( come , ) ( as ( it ( ( ( were , ) out ) ( of nowhere ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Sun) (NNP Ra) (POS 's)) (NNS spaceships)) (VP (VBD did) (RB not) (VP (VB come) (, ,) (SBAR (IN as) (S (NP (PRP it)) (VP (VBD were) (, ,) (ADVP (RB out)) (PP (IN of) (NP (RB nowhere)))))))) (. .)))
The spaceships did not come out of nowhere but they were welcome.
( ( ( ( ( The spaceships ) ( ( did not ) ( ( come out ) ( of nowhere ) ) ) ) but ) ( they ( were welcome ) ) ) . )
(ROOT (S (S (NP (DT The) (NNS spaceships)) (VP (VBD did) (RB not) (VP (VB come) (PRT (RP out)) (PP (IN of) (NP (RB nowhere)))))) (CC but) (S (NP (PRP they)) (VP (VBD were) (ADJP (JJ welcome)))) (. .)))