A letter can be short.Logical formLearned from100 sentences. A letter may be posted on a site.Logical formLearned from100 sentences. Black letters can be bold.Logical formLearned from100 sentences. Letters may pertain-to a US-city.Logical formLearned from100 sentences. A letter may be required.Logical formLearned from100 sentences. A cache can be constituted-of-or-filled-with letters.Logical formLearned from100 sentences. A letter can be from a US-city.Logical formLearned from99 sentences. A letter can be constituted-of-or-filled-with offer.Logical formLearned from99 sentences. A major city may start with a letter.Logical formLearned from99 sentences. A male may take a letter.Logical formLearned from99 sentences. Letters can be to a president.Logical formLearned from99 sentences. Letters can be unsolicited.Logical formLearned from99 sentences. A letter may claim responsibility.Logical formLearned from99 sentences. A letter may show that something-is-the-case.Logical formLearned from98 sentences. Checks may exist in a form of letters of credit.Logical formLearned from98 sentences.