Stds may pertain-to a us-state.Logical formLearned from16 sentences. Stds may be transmitted.Logical formLearned from15 sentences. (Std prevention) may undergo a division.Logical formLearned from15 sentences. Stds can be in women.Logical formLearned from14 sentences. Stds can be nasty.Logical formLearned from14 sentences. A person may be tested for stds.Logical formLearned from14 sentences. Protection can be against stds.Logical formLearned from14 sentences. A std may pertain-to a female.Logical formLearned from13 sentences. A std may pertain-to a male.Logical formLearned from13 sentences. Symptoms can be constituted-of-or-filled-with stds.Logical formLearned from13 sentences. A std can be incurable.Logical formLearned from12 sentences. Patients can be with stds.Logical formLearned from12 sentences. Exposure can be to stds.Logical formLearned from12 sentences. Protection can be against stds.Logical formLearned from12 sentences. A risk can be constituted-of-or-filled-with stds.Logical formLearned from12 sentences.