This park is full of weeds and trash, it seems like no one is taking care of it.

The inner layers of the Earth are extremely hot, and their condition is not yet fully understood.

He headed to the palace to tell the emperor an important report.

My best friend is a twin sister.

This sentence shows the aspect of completion.

He is good at operating that machine.

This family tradition has been handed down from generation to generation.

He inherited the family business from his father.

He was elected as the new Prime Minister of Japan.

Please calculate the sum of this sequence.