If it is not, we can skip the computation of the translation score for this language pair, as it will not be higher than 0.4.
if we find that the highest S inc score among all possible segmentations of p, q, u, v score for a given language pair l 1 , r 1 is lower than score for any other language pair, it follows that l 1 , r 1 will never be the highest scoring language pair.