Vaccines may undergo purchases.Logical formLearned from18 sentences. Operations may undergo a purchase.Logical formLearned from18 sentences. (Office equipment) may undergo a purchase.Logical formLearned from18 sentences. An instrument may undergo a purchase.Logical formLearned from18 sentences. Computer may undergo a purchase.Logical formLearned from18 sentences. A purchase can be spur-of-the-moment.Logical formLearned from18 sentences. Potential can be for purchase.Logical formLearned from18 sentences. (Purchase minutes) can be before a show.Logical formLearned from18 sentences. A purchase can be exclusive.Logical formLearned from18 sentences. A (purchase list) may pertain-to a person.Logical formLearned from18 sentences. A project may undergo a purchase.Logical formLearned from18 sentences. Purchase can be by (tour operators).Logical formLearned from18 sentences. (Phone calls) can be from (purchase mlb baseball tickets).Logical formLearned from18 sentences. (Purchase ephedras) may work for vicodin-pack.Logical formLearned from18 sentences. A (gas purchase) may pertain-to a person.Logical formLearned from18 sentences.