Salmon run against the stream to the upper reaches to spawn, but some of them are caught by bears.
And the eaten-dead salmon might run to the heaven, but some of them be caught by dead bears.
And the eaten-dead-dead salmon might run to the upper heaven, but some of them be eaten by dead-dead bears.
And the eaten-dead-dead-dead salmon might run to the upper-upper heaven, but some of them be eaten by dead-dead-dead bears.
And the eaten-dead-dead-dead-dead salmon might run to the .......
Salmon run against the stream to the upper reaches to spawn, but some of them are caught by bears.
And the eaten-dead salmon might run to the heaven, but some of them be caught by dead bears.
And the eaten-dead-dead salmon might run to the upper heaven, but some of them be eaten by dead-dead bears.
And the eaten-dead-dead-dead salmon might run to the upper-upper heaven, but some of them be eaten by dead-dead-dead bears.
And the eaten-dead-dead-dead-dead salmon might run to the .......
"My drawing did not represent a hat. It was supposed to be a boa constrictor digesting a DRAGON!"
It's a parody of 'the boa constrictor digesting an elephant' (The Little Prince)