Here are some concepts: giraffe, hang, zoo

What is a sentence about these concepts?

Sentence is below.
A group of giraffes hang around in the zoo.

Here are some concepts: airplane, airport, runway, take

What is a sentence about these concepts?

Sentence is below.
an airport at night with bright lights and airplanes landing and taking off on the runway

Here are some concepts: bridge, cross, park

What is a sentence about these concepts?

Sentence is below.
astyle small bridge crossing a stream in a park

Here are some concepts: city, force, provide, security

What is a sentence about these concepts?
Sentence is below.
armed force provide security from behind a wall during a city .