Here are some concepts: canyon, cliff, flank, river

What is a sentence about these concepts?

Sentence is below.
red cliffs flank the blue river of the slot canyon

Here are some concepts: home, live, wall

What is a sentence about these concepts?

Sentence is below.
grand living wall inside a home

Here are some concepts: earth, fly, space

What is a sentence about these concepts?

Sentence is below.
earth in space with a flying asteroid

Here are some concepts: brain, cross, section

What is a sentence about these concepts?
Sentence is below.
cross section through the human brain