The program (can be written in any language, but executable in an unix environment) should take in a block of text, separate the block of text into individual sentences and check whether each one of the individual sentences is grammatically correct. There are various english grammar parsers such as nltk, stanford parser, c & c, etc. We do not care what grammar parser is used. All we need is the ability to tell if all sentences within a block of text is grammatically correct. The program will return “wrong”, if it detects at least 1 sentence in the block of text that is grammatically wrong. The program will return “correct”, if all sentences in the block of text is grammatically correct.