pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
b,q,b-q,29,,0.09229846771273342,$null
b,s,b-s,43,0.07524386007376704,0.9039285715598931,$null
b,o,b-o,70,0.2993787521999779,0.1035865019182115,$null