Persons may delete negatives.Logical formLearned from1 sentences. Editors of an edition may be deleted.Logical formLearned from1 sentences. A term may be deleted from titles of some (tennis organizations).Logical formLearned from1 sentences. A male may delete some messages to a female.Logical formLearned from1 sentences. A decision may delete (classroom references) to a big-bang theory.Logical formLearned from1 sentences. A male may delete songs.Logical formLearned from1 sentences. A difference may be deleted.Logical formLearned from1 sentences. A deuce of spades may be deleted.Logical formLearned from1 sentences. A number may delete tetrahedra.Logical formLearned from1 sentences. A person may delete opinions.Logical formLearned from1 sentences. A phrase may be deleted from a text.Logical formLearned from1 sentences. A man may delete some files.Logical formLearned from1 sentences. (News sites) may be deleted.Logical formLearned from1 sentences. Chinese medias may be deleted.Logical formLearned from1 sentences. A singer may be deleted.Logical formLearned from1 sentences.