Trains may be replaced.Logical formLearned from8 sentences. A logo may be replaced.Logical formLearned from8 sentences. Urban development may be replaced.Logical formLearned from8 sentences. A philosopher may replace a male.Logical formLearned from8 sentences. A bridge may replace a ferry.Logical formLearned from8 sentences. (Boom barriers) may replace (hand gates).Logical formLearned from8 sentences. A person may replace a female with a female.Logical formLearned from8 sentences. A US-president may replace a person.Logical formLearned from8 sentences. An engine may be replaced by an engine.Logical formLearned from8 sentences. Engines may be replaced by engines.Logical formLearned from8 sentences. Some notes may be replaced by coins.Logical formLearned from8 sentences. Some bearings may be replaced.Logical formLearned from8 sentences. A male may be replaced as premier by a male.Logical formLearned from8 sentences. A character may be replaced by a sequence.Logical formLearned from8 sentences. Persons may replace computers.Logical formLearned from8 sentences.