A disease may be caused by bacteria.Logical formLearned from22 sentences. Bacteria may help.Logical formLearned from22 sentences. Infection can be with bacteria.Logical formLearned from22 sentences. Bacteria can be attached.Logical formLearned from22 sentences. Persons may be exposed to bacteria.Logical formLearned from22 sentences. Bacteria may produce a toxin.Logical formLearned from21 sentences. A symbiotic relationship can be with bacteria.Logical formLearned from21 sentences. Bacteria may be isolated.Logical formLearned from21 sentences. Bacteria may develop.Logical formLearned from21 sentences. Bacteria can be in an intestine.Logical formLearned from21 sentences. Bacteria may cause (stomach ulcers).Logical formLearned from21 sentences. Bacteria may cause meningitis.Logical formLearned from21 sentences. Bacteria may pertain-to a female.Logical formLearned from21 sentences. Bacteria may grow.Logical formLearned from21 sentences. Bacteria can be invisible.Logical formLearned from21 sentences.