Here are some concepts: check, customer, flight

What is a sentence about these concepts?

Sentence is below.
customers check in for a flight

Here are some concepts: ceremony, diploma, receive, school

What is a sentence about these concepts?

Sentence is below.
person proudly holds up her diploma after receiving it during the graduation ceremony for high school .

Here are some concepts: silhouette, sunrise, yoga

What is a sentence about these concepts?

Sentence is below.
silhouette of yoga by the sea at sunrise

Here are some concepts: arm, extend, hiker

What is a sentence about these concepts?
Sentence is below.
hiker extending arm to another hiker under a waterfall