1/4 a^{c0,c1}_{a0,a1} b^{v1}_{v0} c^{a3,a4}_{c2,a2} lambda2^{a1,a2}_{a3,a4} a+(c2) a+(a0) a+(v0) a-(v1) a-(c1) a-(c0)
+1/4 a^{c0,c1}_{a1,a2} b^{v1}_{v0} c^{a3,a4}_{c2,a0} gamma1^{a2}_{a4} gamma1^{a1}_{a3} a+(c2) a+(a0) a+(v0) a-(v1) a-(c1) a-(c0)
+1/8 a^{c0,c1}_{a1,a2} b^{v1}_{v0} c^{a3,a4}_{c2,a0} lambda2^{a1,a2}_{a3,a4} a+(c2) a+(a0) a+(v0) a-(v1) a-(c1) a-(c0)