1 The following was used to create the test data. The real inputs
2 were corpus.fr, corpus.en, and corpus.aligned. The generated files
3 were corpus.len_cats and fr-en.al.len.
6 ./make_len_cats.pl corpus.en > corpus.len_cats
8 ../merge_lines.pl corpus.fr corpus.en corpus.aligned corpus.len_cats > fr-en.al.len