A rigor can be extreme.Logical formLearned from55 sentences. A rigor may pertain-to a curriculum.Logical formLearned from53 sentences. A rigor can be analytic.Logical formLearned from51 sentences. A rigor can be conceptual.Logical formLearned from44 sentences. A rigor may pertain-to a program.Logical formLearned from43 sentences. Rigors may pertain-to a season.Logical formLearned from41 sentences. Standards can be constituted-of-or-filled-with rigor.Logical formLearned from37 sentences. Rigors may pertain-to a program.Logical formLearned from37 sentences. A rigor can be physical.Logical formLearned from36 sentences. A need can be for rigor.Logical formLearned from36 sentences. A degree can be constituted-of-or-filled-with rigor.Logical formLearned from30 sentences. A rigor may pertain-to courses.Logical formLearned from29 sentences. A rigor may pertain-to a process.Logical formLearned from29 sentences. A rigor can be quantitative.Logical formLearned from27 sentences. Rigors may pertain-to a life.Logical formLearned from27 sentences.