"On the reverse of your post card write a message or poem in response to your theme"

the picture they've shown next to it is the back of a post card from another student but it actually looks like the back of a post card with the address and everything.. so what kind of thing should i write? should it be like a letter to someone or just a descriptive message?

English isn't my thing :(

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The majority of electical things i come into contact with self destruct
no, i don't mean vibraters

and if you wanted you could do a short paragraph of that, and a small poem lol to be on the safe side.

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Educators destroy your brain,
but you don't know, so why care?
Fagotto