1/2 a^{a1,a2}_{c0,a0} b^{v1}_{v0} c^{c1,c2}_{a3,v1} eta1^{a3}_{a2} a+(c0) a+(a0) a+(v0) a-(a1) a-(c2) a-(c1)
+1/4 a^{a1,a2}_{c0,a0} b^{v1}_{v0} c^{c1,c2}_{a3,v1} lambda2^{a0,a3}_{a1,a2} a+(c0) a+(v0) a-(c2) a-(c1)
-1/4 a^{a1,a2}_{c0,a0} b^{v1}_{v0} c^{c1,c2}_{a3,v2} lambda2^{a0,a3}_{a1,a2} a+(c0) a+(v0) a+(v2) a-(v1) a-(c2) a-(c1)
-1/2 a^{a1,a2}_{c1,a0} b^{v1}_{v0} c^{c0,c1}_{a3,v1} a+(a0) a+(a3) a+(v0) a-(a2) a-(a1) a-(c0)
-a^{a1,a2}_{c1,a0} b^{v1}_{v0} c^{c0,c1}_{a3,v1} eta1^{a3}_{a2} a+(a0) a+(v0) a-(a1) a-(c0)
-1/2 a^{a1,a2}_{c1,a0} b^{v1}_{v0} c^{c0,c1}_{a3,v1} lambda2^{a0,a3}_{a1,a2} a+(v0) a-(c0)
+a^{a1,a2}_{c1,a0} b^{v1}_{v0} c^{c0,c1}_{a3,v2} eta1^{a3}_{a2} a+(a0) a+(v0) a+(v2) a-(v1) a-(a1) a-(c0)
+1/2 a^{a1,a2}_{c1,a0} b^{v1}_{v0} c^{c0,c1}_{a3,v2} lambda2^{a0,a3}_{a1,a2} a+(v0) a+(v2) a-(v1) a-(c0)