1/2 a^{a1}_{a0,a4,v0} b^{a2,a3,a5,v1}_{} gamma1^{a4}_{a5} a+(a0) a+(v0) a-(v1) a-(a3) a-(a2) a-(a1)
+1/2 a^{a0}_{a2,a3,v0} b^{a1,a4,a5,v1}_{} gamma1^{a3}_{a5} gamma1^{a2}_{a4} a+(v0) a-(v1) a-(a1) a-(a0)
+1/4 a^{a0}_{a2,a3,v0} b^{a1,a4,a5,v1}_{} lambda2^{a2,a3}_{a4,a5} a+(v0) a-(v1) a-(a1) a-(a0)
+1/4 a^{a4}_{a2,a3,v0} b^{a0,a1,a5,v1}_{} lambda2^{a2,a3}_{a4,a5} a+(v0) a-(v1) a-(a1) a-(a0)