A person may operate tours.Logical formLearned from8 sentences. President may operate (job boards).Logical formLearned from8 sentences. Persons may operate trips.Logical formLearned from8 sentences. A wife may operate.Logical formLearned from8 sentences. A company may operate some centers.Logical formLearned from8 sentences. Some investors may operate.Logical formLearned from8 sentences. Some surgeons may operate.Logical formLearned from8 sentences. (Pork processing plant) may operate (hog farms).Logical formLearned from8 sentences. A service may be operated by a commissioner.Logical formLearned from8 sentences. A special-court may operate as an independent agency.Logical formLearned from8 sentences. A division of a company may operate (internet properties).Logical formLearned from8 sentences. Tactical bombers may operate from (land bases).Logical formLearned from8 sentences. Kids may operate.Logical formLearned from8 sentences. A company may operate (oil refineries).Logical formLearned from8 sentences. Some communities may operate.Logical formLearned from8 sentences.