text:   for Bag Relations",2,"['New paper on arXiv about implementing logic programs with aggregation using term rewriting and a relational algebra\npaper: <LINK>\ncode/video recording: <LINK> \nwith @xtimv @adveisner #Dyna <LINK>', 'An earlier version of this paper appeared at #WRLA2020 https://t.co/Dt3vgFxumb']",20,10,256