An efficacy may pertain-to a material.Logical formLearned from3 sentences. A relation can be between an efficacy of an agent.Logical formLearned from3 sentences. An efficacy may pertain-to a proposal.Logical formLearned from3 sentences. An efficacy may pertain-to an approach.Logical formLearned from3 sentences. Studies may show an efficacy.Logical formLearned from3 sentences. Efficacy can be against infection.Logical formLearned from3 sentences. Efficacy can be against vulvar cancers.Logical formLearned from3 sentences. An efficacy may pertain-to alternatives.Logical formLearned from3 sentences. An efficacy may pertain-to a declaration.Logical formLearned from3 sentences. An efficacy may pertain-to a paradigm.Logical formLearned from3 sentences. An efficacy can be unreasonable.Logical formLearned from3 sentences. Studies may compare efficacy.Logical formLearned from3 sentences. An efficacy may pertain-to a service.Logical formLearned from3 sentences. A testament can be to an efficacy of (consumer boycotts).Logical formLearned from3 sentences. Research may support an efficacy.Logical formLearned from3 sentences.