Some stds may cause (health problems).Logical formLearned from2 sentences. Stds may be transmitted by contact.Logical formLearned from2 sentences. Diseases may compromise stds.Logical formLearned from2 sentences. Stds can be abbreviated.Logical formLearned from2 sentences. Some persons may underestimate a prevalence of stds.Logical formLearned from2 sentences. Stds can be at a rate.Logical formLearned from2 sentences. A std may cause a person harm.Logical formLearned from2 sentences. Stds can be from a (health care provider).Logical formLearned from2 sentences. Some method of (emergency contraception) may protect against stds.Logical formLearned from2 sentences. A mini-pill may protect against stds.Logical formLearned from2 sentences. Susceptibility can be to stds.Logical formLearned from2 sentences. A definition can be for stds.Logical formLearned from2 sentences. Contact can be with a std.Logical formLearned from2 sentences. A person can be with a std.Logical formLearned from2 sentences. Men can be with std.Logical formLearned from2 sentences.