Goncharov's five-term generation conjecture for the Bloch relations

Let $F$ be a field and let $R_2(F)$ be the subgroup of the relevant free abelian group generated by functional relations in weight two. For $x,y\in P^1_F$, write $FT[x,y]$ for the five-term relation, using the conventions $0/0=1$ and $0/\infty=0$, among others. Goncharov's five-term generation conjecture. The group $R_2(F)$ is the subgroup generated by the elements $FT[x,y]$, where $x,y\in P^1_F$. This would identify all weight-two relations with the classical five-term relations and yield the expected comparison with the classical Bloch group, modulo the torsion qualifications stated in the paper.