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