Answer based on context:

Coming off their home win over the Saints, the Texans flew to Cleveland Browns Stadium for a Week 12 duel with the Cleveland Browns.  In the first quarter, Houston shot first as QB Matt Schaub completed a 17-yard TD pass to WR Kevin Walter for the only score of the period.  In the second quarter, the Browns got on the board as QB Derek Anderson completed a 19-yard TD pass to WR Braylon Edwards.  The Texans would regain the lead as kicker Kris Brown managed to get a 41-yard field goal.  However, Cleveland would regain the lead as Anderson completed a 7-yard TD pass to TE Kellen Winslow. In the third quarter, Houston started to fall behind as Browns kicker Phil Dawson managed to get a 25-yard field goal for the only score of the period.  In the fourth quarter, Cleveland sealed the win with Dawson nailing a 27-yard field goal and RB Jamal Lewis getting a 1-yard TD run.  The Texans' only response would be Schaub's 6-yard TD pass to TE Owen Daniels. The Browns defense managed to hold Andre Johnson to a season-low 3 receptions for 37 yards.

Which team had the lead at the half?
Cleveland