A letter can be in a greek alphabet.Logical formLearned from30 sentences. A letter can be to a son.Logical formLearned from30 sentences. A letter can be honest.Logical formLearned from30 sentences. A letter can be green.Logical formLearned from30 sentences. A letter can be personal.Logical formLearned from30 sentences. Letters may terrorize a nation.Logical formLearned from30 sentences. A male may look at a letter.Logical formLearned from30 sentences. A letter can be to a king.Logical formLearned from30 sentences. White letters can be raised.Logical formLearned from30 sentences. (Block letters) can be black.Logical formLearned from30 sentences. (Anthrax letters) may be sent.Logical formLearned from30 sentences. A letter may pertain-to a fictitious-character.Logical formLearned from30 sentences. Letters may be formed.Logical formLearned from30 sentences. A (recommendation letter) may pertain-to a person.Logical formLearned from30 sentences. A letter can be humble.Logical formLearned from30 sentences.