Complex sentence: The Lightning won the first three games of the series and had a chance to sweep the Canadiens, however Montreal responded with wins in Games 4 and 5 to extended the series to a sixth game.
Split into simpler sentences: The Lightning won the first three games of the series and had a chance to sweep the Canadiens. However, Montreal responded with wins in games 4 and 5 to extended the series to a sixth game.