1/2 a^{a0}_{c0} b^{v0}_{a1} c^{c0,a2}_{v1,v2} gamma1^{a1}_{a2} a+(v1) a+(v2) a-(v0) a-(a0)
+a^{a0}_{c0} b^{v1}_{a1} c^{c0,a2}_{v0,v1} a+(a1) a+(v0) a-(a2) a-(a0)
-a^{a0}_{c0} b^{v1}_{a1} c^{c0,a2}_{v0,v1} gamma1^{a1}_{a2} a+(v0) a-(a0)
-a^{a0}_{c0} b^{v1}_{a1} c^{c1,a2}_{v0,v1} gamma1^{a1}_{a2} a+(c0) a+(v0) a-(a0) a-(c1)
+1/2 a^{a1}_{c0} b^{v0}_{a2} c^{c0,a0}_{v1,v2} eta1^{a2}_{a1} a+(v1) a+(v2) a-(v0) a-(a0)
-a^{a1}_{c0} b^{v1}_{a2} c^{c0,a0}_{v0,v1} eta1^{a2}_{a1} a+(v0) a-(a0)
-a^{a1}_{c0} b^{v1}_{a2} c^{c1,a0}_{v0,v1} eta1^{a2}_{a1} a+(c0) a+(v0) a-(a0) a-(c1)