1/2 a^{c0,v0}_{a0,a1} b^{v1}_{a2} c^{a3}_{v1} gamma1^{a2}_{a3} a+(a0) a+(a1) a-(v0) a-(c0)
-1/2 a^{c0,v1}_{a0,a1} b^{v0}_{a2} c^{a3}_{v1} gamma1^{a2}_{a3} a+(a0) a+(a1) a-(v0) a-(c0)
-a^{c0,v0}_{a0,a2} b^{v1}_{a1} c^{a3}_{v1} gamma1^{a2}_{a3} a+(a0) a+(a1) a-(v0) a-(c0)
+a^{c0,v1}_{a0,a2} b^{v0}_{a1} c^{a3}_{v1} gamma1^{a2}_{a3} a+(a0) a+(a1) a-(v0) a-(c0)