We petitioned the mayor to protect the park.

We have started a petition to solve this problem.

He values practical reason and always strives to act ethically.

He is a very shy person in real life.

The certainty of this plan's success is high.

I think that plan lacks realism.

I think this plan is highly practical.

The condition of the game has completely changed.

This machine is made with very detailed parts.

This plastic can be easily formed by adding heat.