pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
h,k,h-k,92,0.44892796303334037,0.23916849724551947,$null
b,k,b-k,-48,0.6697259747698292,0.3957858467912545,$blah
a,k,a-k,-32,0.913136124185545,0.3146778807984779,$blah
c,k,c-k,-44,0.9579660422795397,,$blah