-1/4 a^{c1,c2}_{c0,a0} b^{a1,a2}_{v0,v1} c^{c3}_{a3} eta1^{a3}_{a2} gamma1^{a0}_{a1} a+(c0) a+(v0) a+(v1) a-(c3) a-(c2) a-(c1)
+1/8 a^{c1,c2}_{c0,a0} b^{a1,a2}_{v0,v1} c^{c3}_{a3} lambda2^{a0,a3}_{a1,a2} a+(c0) a+(v0) a+(v1) a-(c3) a-(c2) a-(c1)
-1/4 a^{c0,c1}_{c2,a0} b^{a1,a2}_{v0,v1} c^{c2}_{a3} eta1^{a3}_{a2} a+(a0) a+(v0) a+(v1) a-(a1) a-(c1) a-(c0)
-1/4 a^{c0,c1}_{c2,a0} b^{a1,a2}_{v0,v1} c^{c2}_{a3} eta1^{a3}_{a2} gamma1^{a0}_{a1} a+(v0) a+(v1) a-(c1) a-(c0)
+1/8 a^{c0,c1}_{c2,a0} b^{a1,a2}_{v0,v1} c^{c2}_{a3} lambda2^{a0,a3}_{a1,a2} a+(v0) a+(v1) a-(c1) a-(c0)
-1/4 a^{c0,c1}_{c2,a2} b^{a0,a3}_{v0,v1} c^{c2}_{a1} gamma1^{a2}_{a3} a+(a1) a+(v0) a+(v1) a-(a0) a-(c1) a-(c0)