A male may buy a guitar.Logical formLearned from40 sentences. Persons may buy an insurance.Logical formLearned from40 sentences. A female may buy a company.Logical formLearned from40 sentences. A person may buy a treadmill.Logical formLearned from40 sentences. A person may buy in a supermarket.Logical formLearned from40 sentences. A person may buy a board.Logical formLearned from40 sentences. Funds may buy blue chips.Logical formLearned from40 sentences. A male may buy a painting.Logical formLearned from40 sentences. Polluters may buy.Logical formLearned from40 sentences. A male may buy an one.Logical formLearned from40 sentences. A single currency may buy some dollars.Logical formLearned from40 sentences. A person may buy a novel.Logical formLearned from39 sentences. A person may buy (health insurance).Logical formLearned from39 sentences. A person may buy in a supermarket.Logical formLearned from39 sentences. A person may buy (plane tickets).Logical formLearned from39 sentences.