Pyramids - Arab Contractors

{"lg_-1":[0,1,1,2],"lg_-1_6":[0,1,1,2],"lg_130":[null,1,1,2],"lg_130_6":[null,1,1,2]}

{"lg_-1":[1,1,4,6],"lg_-1_6":[1,1,4,6],"lg_130":[1,1,3,5],"lg_130_6":[1,1,3,5],"lg_321":[null,null,1,1],"lg_321_6":[null,null,1,1]}

{"lg_-1":[3,3,0,6],"lg_-1_6":[3,3,0,6],"lg_130":[3,3,null,6],"lg_130_6":[3,3,null,6]}

{"lg_-1":[0,1,1,2],"lg_-1_6":[0,1,1,2],"lg_130":[null,1,1,2],"lg_130_6":[null,1,1,2]}

{"lg_-1":[1,2,0,3],"lg_-1_6":[1,2,0,3],"lg_130":[1,2,null,3],"lg_130_6":[1,2,null,3]}