A past can be forgotten.Logical formLearned from314 sentences. Ghosts may pertain-to the past.Logical formLearned from306 sentences. A past can be brutal.Logical formLearned from304 sentences. Persons may be had in the past.Logical formLearned from303 sentences. A study may pertain-to the past.Logical formLearned from297 sentences. Knowledge may pertain-to the past.Logical formLearned from296 sentences. Some years can be in the past.Logical formLearned from290 sentences. Sins may pertain-to the past.Logical formLearned from288 sentences. A past can be secret.Logical formLearned from287 sentences. A person may make in the past.Logical formLearned from283 sentences. A past may pertain-to a father.Logical formLearned from282 sentences. Secrets may pertain-to a past.Logical formLearned from281 sentences. A past may pertain-to a political-leader.Logical formLearned from277 sentences. Wrongs may pertain-to the past.Logical formLearned from276 sentences. A past may pertain-to a continent.Logical formLearned from273 sentences.