Hi, I have question of this type in a file (part-of speech): <s>/SYM Who/WP is/VBZ the/DT author/NN of/IN the/DT book/NN... ?/. </s>/SYM.
I did extract just the tags to make formula (ex: WP+VBZ+DT+NN+IN+DT+NN.., and I stored in a different file, to compare with some patterns(rules) I have in another file. 
#while(<in>)
{
    while ($question =~ /([a-zA-Z0-9.-_]+)\/([A-Z]+)/g){
        $word = $1;
        $tag = $2;
        print OUT "$tag"."/";
        print "$word"."/";


    }
print OUT "\n";

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1. How I compare from one file to another, by lines?, or I have to store all the lines in an array? 2. After I did match (true) with the patterns (rules), How I will retrieve just the value of the tag (WP ->Who...) and display them?, Do I need a hash table; until now I have not used any king of arrays, just files. Thanks. Tita

In reply to How will I retrieve values from a POS-tagged question by Anonymous Monk

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