Do we have any SPARQL expert to help me solve the Wikidata querying problem I have?

I'm querying some airport data and while I successfully received the elevation unit, I can't get the units for the runway length (lengthUnit) and width (widthUnit). Why not use elevation units you might ask? Because some airports have elevation in feet but width and length in meters. If you are willing to brainstorm my issue, here's the link to my query in my gist. Just paste my query to the Wikidata query service (https://query.wikidata.org). https://gist.github.com/StellarStoic/76fb9fcc8710f637f3fc308adaad85e1