Using a lexicon driven system might alleviate the said issues, but can lead to possible splits which are not semantically compatible. Such tools are put to use by some of the existing systems (<cite>Krishna et al., 2016</cite>; Mittal, 2010 ) to obtain additional morphological or syntactic information about the sentences. This limits the scalability of <cite>those systems</cite>, as they cannot handle out of vocabulary words. Scalability of <cite>such systems</cite> is further restricted as the sentences often need to undergo linguistically involved preprocessing steps that lead to human in the loop processing.