pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
c,t,c-t,19,0.9807219775189232,0.3940202563397047,$null
c,r,c-r,22,0.0058960835839930725,0.8534479505691046,$null
c,s,c-s,24,,0.38885720324612805,$null
c,b,c-b,47,0.19007877450229604,0.9255751654990827,$null
c,e,c-e,70,,0.3009498745655653,$null
c,n,c-n,96,,0.2745974469175383,$null
c,x,c-x,99,,,$null