a^{c0}_{a0} b^{a1,v0}_{c1,c4} c^{c3,c4}_{c2,a2} eta1^{a2}_{a1} a+(c1) a+(c2) a+(a0) a-(v0) a-(c3) a-(c0)
-1/2 a^{c0}_{a0} b^{a1,v0}_{c2,c3} c^{c2,c3}_{c1,a2} a+(c1) a+(a0) a+(a2) a-(v0) a-(a1) a-(c0)
-1/2 a^{c0}_{a0} b^{a1,v0}_{c2,c3} c^{c2,c3}_{c1,a2} eta1^{a2}_{a1} a+(c1) a+(a0) a-(v0) a-(c0)
+a^{c0}_{a1} b^{a2,v0}_{c1,c4} c^{c3,c4}_{c2,a0} gamma1^{a1}_{a2} a+(c1) a+(c2) a+(a0) a-(v0) a-(c3) a-(c0)
-1/2 a^{c0}_{a1} b^{a2,v0}_{c2,c3} c^{c2,c3}_{c1,a0} gamma1^{a1}_{a2} a+(c1) a+(a0) a-(v0) a-(c0)