A chalkboard can be for a person.Logical formLearned from15 sentences. Fingernails can be on a chalkboard.Logical formLearned from13 sentences. A manner may smack of chalkboards.Logical formLearned from12 sentences. Nails can be on a chalkboard.Logical formLearned from12 sentences. A chalkboard can be magnetic.Logical formLearned from11 sentences. Beers may touch a chalkboard.Logical formLearned from10 sentences. A (wall chalkboard) can be for a chalkboard.Logical formLearned from10 sentences. A male may write on a chalkboard.Logical formLearned from10 sentences. Fingernails can be on chalkboard.Logical formLearned from9 sentences. A female may look_over at a chalkboard.Logical formLearned from9 sentences. Some (arithmetic problems) can be on a chalkboard.Logical formLearned from8 sentences. A chalkboard can be mobile.Logical formLearned from8 sentences. Gones can be days of chalkboards.Logical formLearned from8 sentences. A word can be on a chalkboard.Logical formLearned from8 sentences. A chalkboard can be black.Logical formLearned from8 sentences.