Understanding the algorithm of the regression tree is difficult.

A decision tree is a part of machine learning and a model for classifying or regressing data.

This forest tree has been alive for over 100 years.

I saw an eagle owl in the park.

Funaki-san is my best friend.

He opened the wooden box and checked its contents.

This wooden crate is very sturdy.

In the new house, white skirting boards are installed.

Mr. Sawaki is my best friend.

There are many calamites growing in this pond.