A survey can be intensive.Logical formLearned from182 sentences. History may undergo a survey.Logical formLearned from182 sentences. A dark side may undergo a survey.Logical formLearned from181 sentences. Analysts can be in a survey.Logical formLearned from178 sentences. Part may pertain-to a survey.Logical formLearned from178 sentences. A kind may undergo a survey.Logical formLearned from178 sentences. A land may undergo a survey.Logical formLearned from177 sentences. Some analysts can be in a survey.Logical formLearned from175 sentences. Some surveys may be conducted.Logical formLearned from174 sentences. A survey can be formal.Logical formLearned from174 sentences. (Survey sites) can be paid.Logical formLearned from173 sentences. (Postage stamps) may undergo a survey.Logical formLearned from172 sentences. A survey may pertain-to a tv-network.Logical formLearned from171 sentences. Respondents can be to a survey.Logical formLearned from170 sentences. A survey may estimate that something-is-the-case.Logical formLearned from169 sentences.