You’re on the right track with the first two (except the actual rules are even broader). Unfortunately the third one isn’t a rule, as the opposite can happen as well. For example, 焼く is transitive and 焼ける is intransitive.
You’re on the right track with the first two (except the actual rules are even broader). Unfortunately the third one isn’t a rule, as the opposite can happen as well. For example, 焼く is transitive and 焼ける is intransitive.