The ecosystem of this lake heavily depends on a specific food chain.

The food chain of this forest is very complex.

A coalition government is a form of government where multiple political parties cooperate to form an organization.

He worked for five consecutive days.

Our company was able to succeed in a big project by federating with other small companies.

I plan to go on a trip next week because it's a long weekend.

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Essential fatty acids are important nutrients for our health.

Essential amino acids are necessary to be taken from our diet because our body cannot produce them on its own.

Essential amino acids, which the human body cannot produce on its own, need to be obtained from the diet.