My grandfather used to till his privately-owned rice field.

He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

He understands the importance of learning.

He is majoring in psychology.

Gaku is my best friend.

Fundamental interaction is one of the most important forces in physics.

He has a deep interest in archaeology.

He likes to take a walk in the park at dusk.

I am majoring in biophysics at university.