He is trying to understand the concept of Trinity in Christianity.

In Christianity, God is considered as the Trinity of the Father, the Son, and the Holy Spirit.

Verbs of the lower second conjugation are important for understanding Japanese grammar.

We celebrate our wedding anniversary on the twenty-fifth day of the month.

It takes twenty minutes to get to my house.

There is a test in two days.

He acted according to my instructions one by one.

It's rare to find a Malayan night heron in the park.

I created two characters.

There are two rooms in my house.