Compile Error. ----------
1. ERROR in /home/stefan/.javax/1512663494296/main.java (at line 148)
	List<List<String>> tok = nlClassify(s); // last element is quoted original
	                         ^^^^^^^^^^
The method nlClassify(String) is undefined for the type main
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2. ERROR in /home/stefan/.javax/1512663494296/main.java (at line 153)
	String word = random(ai_texts("is a", category));
	                     ^^^^^^^^
The method ai_texts(String, String, String) in the type main is not applicable for the arguments (String, String)
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3. ERROR in /home/stefan/.javax/1512663494296/main.java (at line 157)
	return join(map(new F1<List<String>, Object>() { Object get(List<String> set) { try { return  unquote(last(set)) ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "unquote(last(set))"; }}, tok));
	       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Type mismatch: cannot convert from String to List<List<String>>
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3 problems (3 errors)
 java.lang.RuntimeException: java.lang.reflect.InvocationTargetException