Hello Monks
I am taking a sentence from a tagged text and splitting it in words/tag (It/PRP). Them I am taking the sequence of two pairs of words, and tags (separated) to compare the tag with some pattern.
My problem is the way I code it (clueless), the last word of the sentence repeats (no word to combine), e.g.

This is my input: It/PRP really/RB does/VBZ seem/VB to/TO violate/VB a/DT lot/NN of/IN boundaries/NNS
this is my wrong output:

PRP/RB
It really
RB/VBZ
really does
...
IN/NNS
of boundaries
NNS/NNS
boundaries boundaries

1. Please,.. Can somebody help me to solve this?!!

2. Can somebody tell me a better way to evaluate for a pair of consecutives word, and for non-consecutive pair of words given the Ns words in between XY word pair???

Thanks 
my @wordarray = split /\s+/, $sentence; 
 chomp foreach(@wordarray);
 @wordarray = grep {length} @wordarray; 
        
 for(my $wordindex=0; $wordindex <= $#wordarray; $wordindex ++){
        
    my $word1 = $wordarray[$wordindex]; 
    while ($word1 =~ /(.*?)\/([A-Z]+)/g){
        $valueword1 = $1;
        $keyword1 = $2;
    }
    my $word2 = $wordarray[$wordindex+1]; 
    while ($word2 =~ /(.*?)\/([A-Z]+)/g){
        $valueword2 = $1;
        $keyword2 = $2;
     }

    $patternKey = join("/",$keyword1, $keyword2);
    $patternValue = join(" ",$valueword1, $valueword2);

    print "key $patternKey \n";
        print "value $patternValue \n";
        my $matchingKey = grep($patternKey, @PatternArray);
        ...

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In reply to parsing a sentence? by Anonymous Monk

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