Read both full paths and supplied contents before acting. In this workshop a move into an occupied folder name is refused without merging or replacing anything. If an unused destination is available, preserve the earlier folder there before delivering the current one. Real apps can behave differently; ask for help with real warnings.
Worked example
Separate example: to deliver Projects/Birds when Dispatch/Birds is occupied, first move Dispatch/Birds to an unused Archive/Birds location, then move Projects/Birds into Dispatch. Inspect the words at both destinations.
Two River folders / starting inventory
Projects/River contains notes.txt with words New river map. Dispatch/River contains notes.txt with words Earlier river map. Archive has no River folder. The goal is to put the new map inside Dispatch/River and the earlier map inside Archive/River. Keep both files with their words and filenames unchanged. The workshop refuses any move into an already occupied folder name. No other files or folders change. Use only these invented records; no real files need to be opened or uploaded.