An (assessment procedure) can be rigorous.Logical formLearned from6 sentences. (Workout routines) can be rigorous.Logical formLearned from6 sentences. An (unit testing) can be rigorous.Logical formLearned from6 sentences. Rigorous imprisonment can be for years to (death penalty).Logical formLearned from6 sentences. Power can be rigorous.Logical formLearned from6 sentences. A human being may start to rigorous imprisonment.Logical formLearned from6 sentences. A (security analysis) can be rigorous.Logical formLearned from6 sentences. A (verification process) can be rigorous.Logical formLearned from6 sentences. A systematic theology can be rigorous.Logical formLearned from6 sentences. Habits can be rigorous.Logical formLearned from6 sentences. Alternatives can be rigorous.Logical formLearned from6 sentences. A classroom can be rigorous.Logical formLearned from6 sentences. (Risk mitigation processes) can be rigorous.Logical formLearned from6 sentences. A lens can be rigorous.Logical formLearned from6 sentences. A statistical method can be rigorous.Logical formLearned from6 sentences.