‹ ~/src/clj/clojure-opennlp › ∴  java -client -Xmx2048m  -cp 'src/:classes/:/Users/hinmanm/.m2/repository/leiningen/leiningen/1.1.0/leiningen-1.1.0-standalone.jar:src/:lib//clojure-1.1.0.jar:lib//clojure-contrib-1.0-20091212.214557-33.jar:lib//jsch-0.1.42.jar:lib//lein-clojars-0.5.0-20091119.123056-6.jar:lib//maxent-2.5.2.jar:lib//opennlp-tools-1.4.3.jar:lib//trove-1.0.2.jar::' jline.ConsoleRunner clojure.main
Clojure 1.1.0
user=> (use 'opennlp.nlp)
nil
user=> (def treebank-parser (make-treebank-parser "parser-models/build.bin.gz"
                                           "parser-models/check.bin.gz"
                                           "parser-models/tag.bin.gz"
                                           "parser-models/chunk.bin.gz"
                                           "parser-models/head_rules"))
#'user/treebank-parser
user=> (println (.show (first (treebank-parser ["This is a line ."]))))
line:  This is a line .
tokens:  This  for:  This is a line .
tokens:  is  for:  This is a line .
tokens:  a  for:  This is a line .
tokens:  line  for:  This is a line .
tokens:  .  for:  This is a line .
(TOP (S (NP (DT This)(NN  i))(VP (VP (VBZ s)(ADJP (JJ  a l)))(CC i))ne .))
nil
nil


Error when attempting to do the same thing in VimClojure:

Error detected while processing function vimclojure#EvalLine..vimclojure#ExecuteNailWithInput:
line   26:
E121: Undefined variable: DT
E116: Invalid arguments for function NP (DT This)(NN  i))(VP (VP (VBZ s)(ADJP (JJ  a l)))(CC i))ne .))^@{"value" : 0, "stdout" : "line:  This is a line .
tokens:  This  for:  This is a line .
tokens:  is  for:  This is a line .
tokens:
 a  for:  This is a line .
tokens:  line  for:  This is a line .
tokens:  .  for:  This is a line .
nil
nil
", "stderr" : ""}
E116: Invalid arguments for function S (NP (DT This)(NN  i))(VP (VP (VBZ s)(ADJP (JJ  a l)))(CC i))ne .))^@{"value" : 0, "stdout" : "line:  This is a line .
tokens:  This  for:  This is a line .
tokens:  is  for:  This is a line .
token
s:  a  for:  This is a line .
tokens:  line  for:  This is a line .
tokens:  .  for:  This is a line .
nil
nil
", "stderr" : ""}
E116: Invalid arguments for function TOP (S (NP (DT This)(NN  i))(VP (VP (VBZ s)(ADJP (JJ  a l)))(CC i))ne .))^@{"value" : 0, "stdout" : "line:  This is a line .
tokens:  This  for:  This is a line .
tokens:  is  for:  This is a line .

tokens:  a  for:  This is a line .
tokens:  line  for:  This is a line .
tokens:  .  for:  This is a line .
nil
nil
", "stderr" : ""}
E15: Invalid expression: (TOP (S (NP (DT This)(NN  i))(VP (VP (VBZ s)(ADJP (JJ  a l)))(CC i))ne .))^@{"value" : 0, "stdout" : "line:  This is a line .
tokens:  This  for:  This is a line .
tokens:  is  for:  This is a line .
tokens:  a
 for:  This is a line .
tokens:  line  for:  This is a line .
tokens:  .  for:  This is a line .
nil
nil
", "stderr" : ""}
line   27:
E121: Undefined variable: result
E15: Invalid expression: result
Error detected while processing function vimclojure#EvalLine..492:
line    2:
E121: Undefined variable: value
E15: Invalid expression: a:output.value == 0