Example. If the set of words:
finding -> church -> relation -> dog -> sample
And the robot's route, reconstructed from the video:
Sign #5 -> Sign #3 -> Sign #1 -> Sign #2 -> Sign #4
Then:
finding — Sign #5 -> finding is 5th word
church — Sign #3 -> church is 3rd word
relation — Sign #1 -> relation is 1st word
dog — Sign #2 -> dog is 2nd word
sample — Sign #4 -> sample is 4th word
As a result, the correct seed phrase: relation dog church sample finding