The prosecution is rigorously investigating his case.

The police examined the evidence.

In addition to his job as a teacher, he also serves in a dual capacity as a director of the school.

He is also serving as a teacher.

Understanding all the requirements is important for the success of the project.

He developed a blood clot in his brain.

He rose up and accepted the challenge.

This ancient document uses old-style emphasis marks.

In order to solve this unsettled question, everyone's cooperation is necessary.

The children were playing rock paper scissors in the park.