I couldn’t create a valid `tray.svg` because the requests have no one-to-one solution:

- Tables 1 and 4 both require dairy, so they must take the **vanilla cortado** and **decaf cortado**.
- Table 2 must then take the **decaf oat vanilla latte**, the only remaining decaf drink.
- That leaves no vanilla drink for Table 3.

One table’s requirement would need to change before all six drinks could be assigned.