In this paper, QASC is rebuilt as a directed science fact graph with 16{,}444 nodes and 25{,}590 edges, giving a much larger and structurally different substrate than the two curated prerequisite DAGs. Because the official QASC test split withholds evidence, the paper reports retrieval results only on the $926$-question validation split. Graph descriptors are: mean depth 2.3, fraction of nodes with depth $\geq 1$ equal to 79.7%, mean degree 3.1, and mean text length 8.9 tokens.