A back pack can be heavy.Logical formLearned from10 sentences. Packs may pertain-to a drug.Logical formLearned from10 sentences. A pack can be weak.Logical formLearned from10 sentences. A cornerstone may pertain-to a pack.Logical formLearned from10 sentences. Packs can be constituted-of-or-filled-with coins.Logical formLearned from10 sentences. A pack can be constituted-of-or-filled-with (potato chips).Logical formLearned from9 sentences. A lead may pertain-to a pack.Logical formLearned from9 sentences. A (pack territory) may pertain-to a male.Logical formLearned from9 sentences. Packs can be premium.Logical formLearned from9 sentences. An (expansion pack) may pertain-to a male.Logical formLearned from9 sentences. An (expansion pack) may be entitled.Logical formLearned from9 sentences. A (pack offense) may pertain-to a male.Logical formLearned from9 sentences. (Pack ice) can be with some polynias.Logical formLearned from9 sentences. A sea may be obstructed by (pack ice).Logical formLearned from9 sentences. Some packs may be sold.Logical formLearned from9 sentences.