-1/2 a^{v0}_{a0} b^{a1,a2}_{v1,v2} c^{v3}_{a3} eta1^{a3}_{a2} gamma1^{a0}_{a1} a+(v1) a+(v2) a-(v3) a-(v0)
+1/4 a^{v0}_{a0} b^{a1,a2}_{v1,v2} c^{v3}_{a3} lambda2^{a0,a3}_{a1,a2} a+(v1) a+(v2) a-(v3) a-(v0)
-a^{v2}_{a0} b^{a1,a2}_{v0,v2} c^{v1}_{a3} eta1^{a3}_{a2} a+(a0) a+(v0) a-(v1) a-(a1)
-a^{v2}_{a0} b^{a1,a2}_{v0,v2} c^{v1}_{a3} eta1^{a3}_{a2} gamma1^{a0}_{a1} a+(v0) a-(v1)
+1/2 a^{v2}_{a0} b^{a1,a2}_{v0,v2} c^{v1}_{a3} lambda2^{a0,a3}_{a1,a2} a+(v0) a-(v1)
-a^{v2}_{a2} b^{a0,a3}_{v0,v2} c^{v1}_{a1} gamma1^{a2}_{a3} a+(a1) a+(v0) a-(v1) a-(a0)