When processing input sentences from the Regulus top-level, print a summary of each parse tree. This is primarily useful if you need to add {\tt tree\_\-includes\_\-structure} or {\tt tree\_\-doesnt\_\-include\_\-structure} constraints in an EBL training corpus. \ref{Figure:PRINT-TREE-SUMMARY-example} shows an example using the Toy1 grammar. \begin{figure} \begin{verbatim} >> PRINT_TREE_SUMMARY_ON (Print summary versions of parse trees)

--- Performed command PRINT_TREE_SUMMARY_ON, time = 0.00 seconds

>> switch on the light (Parsing with left-corner parser)

Analysis time: 0.00 seconds

Return value: [[action,switch],[device,light], [onoff,on],[utterance_type,command]]

Global value: []

Syn features: []

Parse tree:

.MAIN [TOY1_RULES:1-4] utterance [TOY1_RULES:5-9] command [TOY1_RULES:10-14] / verb lex(switch) [TOY1_LEXICON:8-10] | onoff null lex(on) [TOY1_LEXICON:24-25] | np [TOY1_RULES:25-29] | / lex(the) | | noun lex(light) [TOY1_LEXICON:16-17] \ \ null

------------------------------- FILES -------------------------------

TOY1_LEXICON: d:/regulus/examples/toy1/regulus/toy1_lexicon.regulus TOY1_RULES: d:/regulus/examples/toy1/regulus/toy1_rules.regulus

Summary:

('.MAIN' < [(utterance < [command<[verb<lex(switch), onoff<lex(on), np<[lex(the), noun<lex(light), empty_constituent]]])]) \end{verbatim} \caption{Example showing use of {\tt PRINT\_TREE\_SUMMARY\_ON}} \label{Figure:PRINT-TREE-SUMMARY-example} \end{figure}