pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
g,n,g-n,27,0.7470141234297678,0.23011071607665967,$blah
g,c,g-c,50,0.5616833815697281,0.35359807963376766,$blah
g,q,g-q,58,0.4600969018938087,,$blah