a^{c1,a1}_{c0,a0} b^{a3,v0}_{a2} eta1^{a2}_{a1} gamma1^{a0}_{a3} a+(c0) a-(v0) a-(c1)
+a^{c1,a1}_{c0,a0} b^{a3,v0}_{a2} lambda2^{a0,a2}_{a1,a3} a+(c0) a-(v0) a-(c1)
-a^{c1,a2}_{c0,a0} b^{a1,v0}_{a3} eta1^{a3}_{a2} a+(c0) a+(a0) a-(v0) a-(a1) a-(c1)
+a^{c1,a0}_{c0,a2} b^{a3,v0}_{a1} gamma1^{a2}_{a3} a+(c0) a+(a1) a-(v0) a-(a0) a-(c1)