-1/2 a^{c0,a1}_{a0,a4} b^{a2,a3,a5}_{v0} gamma1^{a4}_{a5} a+(a0) a+(v0) a-(a3) a-(a2) a-(a1) a-(c0)
+1/2 a^{c0,a0}_{a2,a3} b^{a1,a4,a5}_{v0} gamma1^{a3}_{a5} gamma1^{a2}_{a4} a+(v0) a-(a1) a-(a0) a-(c0)
+1/4 a^{c0,a0}_{a2,a3} b^{a1,a4,a5}_{v0} lambda2^{a2,a3}_{a4,a5} a+(v0) a-(a1) a-(a0) a-(c0)
+1/4 a^{c0,a4}_{a2,a3} b^{a0,a1,a5}_{v0} lambda2^{a2,a3}_{a4,a5} a+(v0) a-(a1) a-(a0) a-(c0)