A rigor may pertain-to rules.Logical formLearned from4 sentences. Rigor can be on rules.Logical formLearned from4 sentences. Twins may react to rigors of a surgery.Logical formLearned from4 sentences. A course can be constituted-of-or-filled-with rigor.Logical formLearned from4 sentences. A rigor can be to rebels.Logical formLearned from3 sentences. A rigor can be substantive.Logical formLearned from3 sentences. A rigor can be philological.Logical formLearned from3 sentences. Rigors may pertain-to a school.Logical formLearned from3 sentences. A trio may deal with rigors of running a bed.Logical formLearned from3 sentences. Exposure can be to rigors of (air combat maneuvering).Logical formLearned from3 sentences. A balance can be constituted-of-or-filled-with rigor.Logical formLearned from3 sentences. Rigor can be for some students.Logical formLearned from3 sentences. (Rigor mortis) may pertain-to a male.Logical formLearned from3 sentences. An insistence can be on intellectual rigor.Logical formLearned from3 sentences. A male may do with rigor.Logical formLearned from3 sentences.