(Sewer overflow events) can be combined.Logical formLearned from7 sentences. A toxicity can be combined.Logical formLearned from7 sentences. Electricity can be combined.Logical formLearned from7 sentences. (Research efforts) can be combined.Logical formLearned from7 sentences. Importance can be combined.Logical formLearned from7 sentences. A sensation can be combined.Logical formLearned from7 sentences. A (cash balance) can be combined.Logical formLearned from7 sentences. An economic growth can be combined.Logical formLearned from7 sentences. A seminar can be combined.Logical formLearned from7 sentences. A (library catalog) can be combined.Logical formLearned from7 sentences. Provisions can be combined.Logical formLearned from7 sentences. A variable can be combined.Logical formLearned from7 sentences. Dynamics can be combined.Logical formLearned from7 sentences. An assignment can be combined.Logical formLearned from7 sentences. Mutations can be combined.Logical formLearned from7 sentences.