please draw the network. Can I intersect the line while drawing this network

ES DURATION EE 0 2 2 NAME Task 4 LS SLACK LE Exercise #2 - Build the Flow and Confirm Critical Path Task Duration Task ID Task Description Task Predecessors (hours) A Project start 0 B Buy materials for A A 10 C Buy materials for B A 20 D Build A B, C 30 E Build B B. C 20 F Polish and finish B E 40 G Join A and B D. F 20 H Project finish G 0 7