Hi,

here's a minor discovery in phrase_extract

phrase_extract does not give any usage information, even though it seems 
somebody had the intention to do so:

    if (argc < 1)
    {
      cerr << "syntax: relax-parse < in-parse > out-parse ["
           << " --LeftBinarize | ---RightBinarize |"
           << " --SAMT 1-4 ]" << endl;
      exit(1);
    }

argc is of course always 1 or greater.

It would be great if phrase_extract would support something like 
"--help" or "-h". Or maybe require at least one argument and then 
provides usage on "if (argc < 2)"


of course this is just minor stuff.

best regards
Christof


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