1/2 a^{a1}_{c0} b^{c1,c2}_{c4,v0} c^{c3,c4}_{a0,a2} eta1^{a2}_{a1} a+(c0) a+(a0) a+(v0) a-(c3) a-(c2) a-(c1)
+1/4 a^{a0}_{c2} b^{c0,c1}_{c3,v0} c^{c2,c3}_{a1,a2} a+(a1) a+(a2) a+(v0) a-(a0) a-(c1) a-(c0)
-1/2 a^{a0}_{c2} b^{c0,c2}_{c3,v0} c^{c1,c3}_{a1,a2} a+(a1) a+(a2) a+(v0) a-(a0) a-(c1) a-(c0)
+1/2 a^{a1}_{c2} b^{c0,c1}_{c3,v0} c^{c2,c3}_{a0,a2} eta1^{a2}_{a1} a+(a0) a+(v0) a-(c1) a-(c0)
-a^{a1}_{c2} b^{c0,c2}_{c3,v0} c^{c1,c3}_{a0,a2} eta1^{a2}_{a1} a+(a0) a+(v0) a-(c1) a-(c0)
-1/2 a^{a1}_{c4} b^{c1,c2}_{c0,v0} c^{c3,c4}_{a0,a2} eta1^{a2}_{a1} a+(c0) a+(a0) a+(v0) a-(c3) a-(c2) a-(c1)
-1/2 a^{a1}_{c4} b^{c1,c4}_{c0,v0} c^{c2,c3}_{a0,a2} eta1^{a2}_{a1} a+(c0) a+(a0) a+(v0) a-(c3) a-(c2) a-(c1)