ok i have changed it again hopefully its a bit clearer this time

"The unique position is the position of every different word in the sentence, which excludes repeated words"

i was going to add this, do you reckon that's a good explanation? give suggestions if you have a better idea

i want to keep it short and concise whilst not being too complex to understand

Ah ye, this kata was updated by someone else
ill fix it when im home i promise

either you said the same thing as the wording
or
i have no clue what you just said

please simplify what you just said, i cant comprehend it :(