Diag/Test4

term1

${}\swarrow$

${}\searrow$

term21

term22

${}\swarrow$

${}\searrow$

${}\swarrow$

${}\searrow$

term31

term32

term33

term34

${}\swarrow$

${}\downarrow$

${}\downarrow$

${}\searrow$

${}\swarrow$

${}\downarrow$

${}\downarrow$

${}\searrow$

term41

term42

term43

term44

term45

term46

term47

term48