The Discovery Channel Young Scientist Challenge (DCYSC)
The first was a research presentation , accounting for 20% of the total score , held at the Smithsonian's National Museum of Natural History , the National Academy of Sciences , or another academic national association that varied from year to year . 
<triplet> Smithsonian <subj> National Museum of Natural History <obj> subsidiary <triplet> National Museum of Natural History <subj> Smithsonian <obj> parent organization