Here are some concepts: begin, city, coast

What is a sentence about these concepts?

Sentence is below.
engineers began building a great city off the coast .

Here are some concepts: flower, prey, spider, wait

What is a sentence about these concepts?

Sentence is below.
a spider hiding inside an orchid flower waiting for prey .

Here are some concepts: hang, rack, wall

What is a sentence about these concepts?

Sentence is below.
A large knife hanging on a rack on the wall.

Here are some concepts: complete, construction, stadium

What is a sentence about these concepts?
Sentence is below.
workers completing the construction of the football stadium .