(Alet values) may be defined as designatting a std.Logical formLearned from2 sentences. Alets can be to stds.Logical formLearned from2 sentences. A mapping of alets to stds may be depicted in figure.Logical formLearned from2 sentences. (Std treatment) may manifest effectiveness.Logical formLearned from2 sentences. Rules may use a (std policy-type).Logical formLearned from2 sentences. Stds can be within a domain.Logical formLearned from2 sentences. A std can be among persons.Logical formLearned from2 sentences. A person may sit with a std.Logical formLearned from2 sentences. (Std organisms) may infect a host surfaces.Logical formLearned from2 sentences. Vaccines can be for prevention of stds.Logical formLearned from2 sentences. An element can be in controling some stds.Logical formLearned from2 sentences. Contrast can be to some stds.Logical formLearned from2 sentences. Stds may manifest infectiousness.Logical formLearned from2 sentences. An approach to reducing an infectiousness of some stds can be a treatment.Logical formLearned from2 sentences. A link can be between stds.Logical formLearned from2 sentences.