  Semi-classical configurations in Yang-Mills theory have been derived from
lattice Monte Carlo configurations using a recently proposed constrained
cooling technique which is designed to preserve every Polyakov line (at any
point in space-time in any direction). Consequently, confinement was found
sustained by the ensemble of semi-classical configurations. The existence of
gluonic and fermionic near-to-zero modes was demonstrated as a precondition for
a possible semi-classical expansion around the cooled configurations as well as
providing the gapless spectrum of the Dirac operator necessary for chiral
symmetry breaking. The cluster structure of topological charge of the
semi-classical streamline configurations was analysed and shown to support the
axial anomaly of the right size, although the structure differs from the
instanton gas or liquid. Here, we present further details on the space-time
structure and the time evolution of the streamline configurations.
