Commuting by subway is the most convenient.

He is majoring in philosophy.

The procedures to obtain a new visa are complicated.

He is a famous philosopher.

My father works at an ironworks.

His way of thinking is very philosophical.

He is a famous philosopher, influencing many people.

He is majoring in moral philosophy at university.

He is training using a metal rod.

Meihara-san raises cows on her farm.