0 412 0 842 124 0 0 0 0 "worker"
0 412 10 842 124 1 0 0 1 "pc" "attr1" "attr3"
1 412 0 842 124 1 0 0 1 "pc" "attr2" 
2 412 0 842 124 2 0 0 1 "worker" "attr4" "attr1" "attr2"
