Okay. What I've seen of actually Darwin in the textbook, in my opinion, is actually quite slim. It follows state standards, of course. And, actually, to me, it gives more of a historical context of Darwin than anything as far as what I have read. And I did look at that section, and I looked basically through the book. And it appears to be historical mainly in context of Darwin's time frame and what he did for science.
The textbook focuses more on the historical side of Darwin and less on the scientific side.
The speaker said they saw very slim amount of evidence of information about the scientific side of Darwin. I think the system had trouble deciphering between that and historical. 
( z1 and :op ( z2 focus :ARG0 ( z3 textbook ) :ARG2 ( z4 side :mod ( z5 history ) :poss ( z6 person :name ( z7 name :op "Darwin" ) ) ) :ARG1-of ( z8 have-quant :ARG3 ( z9 more ) ) ) :op ( z10 focus :ARG0 z3 :ARG2 ( z11 side :mod ( z12 science ) :ARG1-of ( z13 have-quant :ARG3 ( z14 less ) ) ) ) )