Here are some concepts: conduct, experiment, lab

What is a sentence about these concepts?

Sentence is below.
students conduct an experiment in a lab

Here are some concepts: greet, politician, street

What is a sentence about these concepts?

Sentence is below.
agents accompany politician as he greets a young boy on the street

Here are some concepts: specie, wave, wind

What is a sentence about these concepts?

Sentence is below.
biological species waving in the wind

Here are some concepts: galaxy, image, region

What is a sentence about these concepts?
Sentence is below.
image of the region between lenticular galaxies