He was so profound that it was difficult for us to understand his thoughts.

He is thought to be a greedy person.

His actions are said to be deeply sinful.

Natural language understanding is an important field of artificial intelligence.

The exam ended and the results were good, so I thought 'all's well that ends well'.

The Calopteryx cornelia is a species endemic to Japan, and it has beautiful wings.

He is doing special exercises to strengthen his flexor digitorum profundus.