PERSON@1 -LRB- `` LOCATION@1 '' -RRB- , a supertall skyscraper under construction in LOCATION@2 , LOCATION@3 , is the tallest man-made structure ever built , at .

PERSON@1 or `` LOCATION@1 '' is a very tall -LRB- NUMBER@1 stories high -RRB- skyscraper being built in LOCATION@2 , LOCATION@3 .
