Check the consistency of the current Alterf patterns file, defined by the {\tt alterf\_\-patterns\_\-file config} file entry. Records in the file should have the format \begin{verbatim} alterf_pattern(<Pattern>, <Atom>, <Sent>). \end{verbatim} or \begin{verbatim} alterf_pattern(<Pattern>, <Atom>, <Sent>) :- <Conds>. \end{verbatim} where \verb!<Pattern>! is the Alterf pattern, \verb!<Atom>! is the semantic atom it corresponds to, \verb!<Sent>! is an example sentence illustrating the patterns, and \verb!<Conds>! are optional Prolog conditions.

The command parses each \verb!<Sent>! using the currently loaded grammar, and checks that the \verb!<Pattern>! matches it. It warns about patterns that fail to match, and print summary statistics.