-1/2 a^{c1,a0}_{c0,v0} b^{c2,c3}_{a1,v1} c^{a3}_{a2} eta1^{a2}_{a0} gamma1^{a1}_{a3} a+(c0) a+(v0) a+(v1) a-(c3) a-(c2) a-(c1)
-1/2 a^{c1,a0}_{c0,v0} b^{c2,c3}_{a1,v1} c^{a3}_{a2} lambda2^{a1,a2}_{a0,a3} a+(c0) a+(v0) a+(v1) a-(c3) a-(c2) a-(c1)
-a^{c0,a0}_{c2,v0} b^{c1,c2}_{a1,v1} c^{a3}_{a2} eta1^{a2}_{a0} gamma1^{a1}_{a3} a+(v0) a+(v1) a-(c1) a-(c0)
-a^{c0,a0}_{c2,v0} b^{c1,c2}_{a1,v1} c^{a3}_{a2} lambda2^{a1,a2}_{a0,a3} a+(v0) a+(v1) a-(c1) a-(c0)
+a^{c0,a0}_{c2,v0} b^{c1,c2}_{a2,v1} c^{a3}_{a1} gamma1^{a2}_{a3} a+(a1) a+(v0) a+(v1) a-(a0) a-(c1) a-(c0)
-a^{c0,a2}_{c2,v0} b^{c1,c2}_{a0,v1} c^{a1}_{a3} eta1^{a3}_{a2} a+(a0) a+(v0) a+(v1) a-(a1) a-(c1) a-(c0)
+a^{c0,a2}_{c2,v0} b^{c1,c2}_{a3,v1} c^{a1}_{a0} eta1^{a3}_{a2} a+(a0) a+(v0) a+(v1) a-(a1) a-(c1) a-(c0)