This door opens automatically.

This village really has an idyllic landscape.

He admitted that it is difficult to execute the plan, saying 'it is easier said than done.'

He is interested in geometrical shapes.

He is conducting research on historical kana usage.

He often thinks about problems from a humanitarian perspective.

His company is facing the risk of a hostile takeover.

He is spending a lot of time on experimental research.

That plan is too impractical, it's difficult to implement.

His plan was so unrealistic that no one could believe it.