I practice the piano every day.

I lost contact with him.

His story made me associate with old memories in my mind.

He went to the gym for five days in a row.

This issue is closely related to his research.

He conducted a series of experiments.

He was very successful as the Federal Chancellor of Germany.

Roentgenium is one of the elements on the periodic table.

We need to check the relevance of this data.

I am training for running every day.