Command used for regression testing in speech translation applications, when employing a paraphrase file (cf. Section~\ref{Section:TranslationRegressionParaphrases}). There will typically be some out-of-coverage utterances which are still close enough that they will successfully go through speech understanding. However, since the transcription is out-of-coverage, the scoring routines will have no way to know that the result is incorrect, since the transcription produces no reference output to compare with.

Under these circumstances, it is possible to declare a {\em paraphrase file}, which associates in-coverage sentences with out-of-coverage transcriptions. A paraphrase file record has the following format: \begin{verbatim} paraphrase(<TranscriptAtom>, <ParaphraseAtom>) \end{verbatim} where \verb!<TranscriptAtom>! is the transcription and \verb!<ParaphraseAtom>! is the paraphrase.

The command {\tt CHECK\_\-PARAPHRASES} assumes that a grammar is loaded. It parses the \verb!<ParaphraseAtom>! fields in the paraphrase file, and checks that they are all in coverage, issuing warnings for the ones that are not.