Here are some concepts: find, parent, toy

What is a sentence about these concepts?

Sentence is below.
parents mortified to find toys full of mold

Here are some concepts: book, clock, room

What is a sentence about these concepts?

Sentence is below.
A clock and some books in a room.

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

What is a sentence about these concepts?

Sentence is below.
A train moving down a track approaching a station.

Here are some concepts: feature, time, year

What is a sentence about these concepts?
Sentence is below.
water flows into geographical feature for the first time in years