Sentence simplification can be defined as the process of producing a simplified version of a sentence by changing some of the lexical material and grammatical structure of that sentence, while still preserving the semantic content of the original sentence, in order to ease its understanding.
language learners (Siddharthan, 2002), people with reading disabilities (Inui et al., 2003) such as aphasia (Carroll et al., 1999), and low-literacy readers (Watanabe et al., 2009) can benefit from this application.