1/16 a^{c2,c3}_{c0,c1} b^{a0,a3}_{a1,a2} c^{c4,a4}_{v0,v1} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(c1) a+(v0) a+(v1) a-(a0) a-(c4) a-(c3) a-(c2)
-1/8 a^{c1,c2}_{c0,c3} b^{a1,a2}_{a0,a3} c^{c3,a4}_{v0,v1} gamma1^{a3}_{a4} a+(c0) a+(a0) a+(v0) a+(v1) a-(a2) a-(a1) a-(c2) a-(c1)
-1/8 a^{c1,c2}_{c0,c3} b^{a0,a3}_{a1,a2} c^{c3,a4}_{v0,v1} lambda2^{a1,a2}_{a3,a4} a+(c0) a+(v0) a+(v1) a-(a0) a-(c2) a-(c1)