He always proactively suggests new ideas.

The special theory of relativity is a theory proposed by Einstein.

Learning about the ancient special kana usage is very important for understanding ancient Japanese.

The Jōdai Tokushu Kanazukai is one of the notation methods of ancient Japan.

He wrote his name using a logogram.

This sentence contains non-Jōyō kanji.

The epicranius muscle is one of the important muscles for making facial expressions.

I create a balance sheet every month to understand my financial situation.

I analyze data using a spreadsheet software.

Let's look at this truth table and understand the result of the logical expression.