Machines can be safe.Logical formLearned from57 sentences. A machine can be clean.Logical formLearned from57 sentences. A machine can be popular.Logical formLearned from57 sentences. Machines may be used in half of counties.Logical formLearned from57 sentences. Rows can be constituted-of-or-filled-with machines.Logical formLearned from57 sentences. Machines can be manual.Logical formLearned from57 sentences. Features may pertain-to a machine.Logical formLearned from57 sentences. Troops may fire (machine guns).Logical formLearned from57 sentences. Machines may read.Logical formLearned from57 sentences. (Machine tools) can be controlled.Logical formLearned from56 sentences. A machine may be infected.Logical formLearned from56 sentences. A person may use machines.Logical formLearned from56 sentences. A roof may bolt machine.Logical formLearned from56 sentences. Persons may play (slot machines).Logical formLearned from56 sentences. Machines may multiply.Logical formLearned from56 sentences.