He is an expert in petrochemistry.

This beautiful lapis lazuli necklace is my favorite.

She likes collecting gemstones.

My favorite book is Harry Potter.

Numerical analysis is a branch of mathematics that studies techniques and theories for solving mathematical problems numerically.

He is an expert in chemical analysis.

The police started chasing the criminal.

The tracker dog was helpful in finding the fugitive.

All the guest seating in the concert hall was full.

He is majoring in analysis at university.