Exposures can be positive.Logical formLearned from13 sentences. An athlete may test positive.Logical formLearned from13 sentences. Alerts can be positive.Logical formLearned from13 sentences. Some percent of a beef may test positive for salmonella.Logical formLearned from13 sentences. Some sheep may test positive.Logical formLearned from13 sentences. A heritage can be positive.Logical formLearned from13 sentences. Some players may test positive for marijuana.Logical formLearned from13 sentences. Some percent of an (adult population) can be positive.Logical formLearned from13 sentences. Refugees may test positive.Logical formLearned from13 sentences. An (a test) can be positive.Logical formLearned from13 sentences. Contacts can be positive.Logical formLearned from13 sentences. A (dna match) can be positive.Logical formLearned from13 sentences. A student may test positive for flu.Logical formLearned from13 sentences. Persons may have positive tests.Logical formLearned from13 sentences. Reaction to a plan can be positive.Logical formLearned from13 sentences.