You will be given a definition of a task first, then some input of the task.
This task involves annotating the answer type to a given question that involve some kind of complex reasoning (including numerical reasoning). Note that the questions require looking at more than one part of the passage to answer. There are 3 possible answer types (i) spans, (ii) numbers and (iii) dates. If the answer can be found in the passage, label it as "span". If the answer is a number, label as "number". Similarly, label "date" if you think the answer to the given question is a date.

Passage: Hoping to rebound from their Sunday night road loss to the Falcons, the Bears flew to Paul Brown Stadium for a Week 7 interconference duel with the Cincinnati Bengals. Chicago would trail early in the first quarter as Bengals quarterback Carson Palmer found wide receiver Chris Henry on a 9-yard touchdown pass and wide receiver Chad Ochocinco on an 8-yard touchdown pass. Things continued to get worse for the Bears as Palmer completed a 3-yard touchdown pass to tight end J.P. Foschi and an 8-yard touchdown pass to wide receiver Laveranues Coles, followed by a 29-yard field goal from kicker Shayne Graham. Chicago would close out the half as kicker Robbie Gould booted a 22-yard field goal. Afterwards, Cincinnati would pull away with Palmer finding Ochocinco again on a 13-yard touchdown pass in the third quarter and former Bears running back Cedric Benson getting a 1-yard touchdown run in the fourth quarter. Chicago would end the game with quarterback Jay Cutler's 5-yard touchdown pass to wide receiver Devin Hester.
Question: Which team was leading at halftime?
Output:
span