A progression can be melodic.Logical formLearned from12 sentences. Discoveries may undergo a progression.Logical formLearned from12 sentences. A show may undergo a progression.Logical formLearned from11 sentences. A progression can be painful.Logical formLearned from11 sentences. Progression can be through a game.Logical formLearned from11 sentences. A (chord progression) may pertain-to a song.Logical formLearned from11 sentences. Music may undergo a progression.Logical formLearned from11 sentences. A soul may undergo a progression.Logical formLearned from11 sentences. An art may undergo a progression.Logical formLearned from11 sentences. A progression may take place.Logical formLearned from11 sentences. Primes can be in (arithmetic progression).Logical formLearned from11 sentences. A society may undergo a progression.Logical formLearned from11 sentences. (Disease progression) may occur.Logical formLearned from11 sentences. Oas may undergo a progression.Logical formLearned from11 sentences. Labor may undergo a progression.Logical formLearned from11 sentences.