Gas may be delivered by seller.Logical formLearned from6 sentences. Confirmation can be by seller.Logical formLearned from6 sentences. A pipeline may pertain-to seller.Logical formLearned from6 sentences. An agreement can be with seller.Logical formLearned from6 sentences. Rates may pertain-to seller.Logical formLearned from6 sentences. Seller may effect an amendment to exhibit.Logical formLearned from6 sentences. A seller may transfer.Logical formLearned from6 sentences. A seller can be competitive.Logical formLearned from6 sentences. Sellers can be constituted-of-or-filled-with grain.Logical formLearned from6 sentences. Sellers may leave.Logical formLearned from6 sentences. A (security interest) may be created by a seller.Logical formLearned from6 sentences. A seller can be in an area.Logical formLearned from6 sentences. A seller may pertain-to a service.Logical formLearned from6 sentences. A liability may pertain-to seller.Logical formLearned from6 sentences. Markets may pertain-to sellers.Logical formLearned from6 sentences.