/**

@page scfg_train_manual scfg_train
@brief *Train the parameters of a stochastic context free grammar*
@tableofcontents

@section synopsis Synopsis

@SYNOPSIS@

`scfg_train` takes a stochastic context free grammar (SCFG) and trains
the probabilities with respect to a given bracket corpus using the
inside-outside algorithm.   This is basically an implementation
of Pereira and Schabes 1992.

Note using this program properly may require months of CPU time.

@section options Options

@OPTIONS@

*/