I've been waiting for hours at that shop, but the meal still hasn't come out.

I exercise at the gym for two hours every day.

My father owns five boats.

There is a large weir in this river.

I am planning to go to Seki City in Gifu Prefecture next week.

This rock contains sanidine.

He is an expert in tidology, conducting research on ocean tides.

He is majoring in tidal science.

He is an expert in harmonic analysis.

He was standing at the summit of the mountain.