11. The non-transitory computer readable medium of claim 10 , wherein the n-tuple representation includes a first noun, a verb and a second noun for behavior text fragments and for status text fragments.
11. The non-transitory computer readable medium of claim 10 , wherein the n-tuple representation includes a first noun, a verb and a second noun for behavior text fragments and for status text fragments. 12. The non-transitory computer readable medium of claim 11 , wherein the determining at least one difference comprises determining that the text fragments in the corresponding pair have the same first nouns, determining that the text fragments in the corresponding pair have the same second nouns, and determining that the text fragments in the corresponding pair have different verbs.