I read from Druze to dry-erase board.

The Druze faith takes elements from many other faiths/religions.

https://en.wikipedia.org/wiki/Druze

The dry cleaning process is not dry, but it does not include any water because certain synthetic materials don't react well to water. We solved the mystery!

https://en.wikipedia.org/wiki/Dry_cleaning

The word of the episode is "dry-erase board".

Theme music from Jonah Kraut

https://jonahkraut.bandcamp.com/

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