-a^{v1,v2}_{a0,v0} b^{a1}_{v2} c^{a3}_{a2} eta1^{a2}_{a1} gamma1^{a0}_{a3} a+(v0) a-(v1)
-a^{v1,v2}_{a0,v0} b^{a1}_{v2} c^{a3}_{a2} lambda2^{a0,a2}_{a1,a3} a+(v0) a-(v1)
-a^{v1,v2}_{a0,v0} b^{a2}_{v2} c^{a1}_{a3} eta1^{a3}_{a2} a+(a0) a+(v0) a-(v1) a-(a1)
+1/2 a^{v1,v2}_{a0,v0} b^{a1}_{v3} c^{a3}_{a2} eta1^{a2}_{a1} gamma1^{a0}_{a3} a+(v0) a+(v3) a-(v2) a-(v1)
+1/2 a^{v1,v2}_{a0,v0} b^{a1}_{v3} c^{a3}_{a2} lambda2^{a0,a2}_{a1,a3} a+(v0) a+(v3) a-(v2) a-(v1)
+a^{v1,v2}_{a2,v0} b^{a0}_{v2} c^{a3}_{a1} gamma1^{a2}_{a3} a+(a1) a+(v0) a-(v1) a-(a0)
-a^{v1,v2}_{a2,v0} b^{a3}_{v2} c^{a1}_{a0} gamma1^{a2}_{a3} a+(a0) a+(v0) a-(v1) a-(a1)