Here are some concepts: book, librarian, shelf

What is a sentence about these concepts?

Sentence is below.
a librarian selecting a book from a shelf .

Here are some concepts: leave, station, track, train

What is a sentence about these concepts?

Sentence is below.
A long, silver train leaving the station with several rows of tracks.

Here are some concepts: bear, limb, rest

What is a sentence about these concepts?

Sentence is below.
A koala bear rests on the limb of a tree.

Here are some concepts: beach, flow, tide

What is a sentence about these concepts?
Sentence is below.
the tide flowing onto the beach by english civil parish before sunrise