This talk is a continuation of Yonatan Gutman's talk on Nov. 26. In the last talk, we introduced our main conclusion. The existence of nilcycles guarantees a strictly ergodic distal topological model of a (measurable)abelian group extension of a nil-distal system. In this talk, we will give a sketch of the proof. By choosing a special example, we will verify the continuity of the G-action on the topological model. Joint work with Yonatan Gutman.