Task: Question Answering
Input (English): Passage: Hoping to snap their three-game losing streak, and coming off their bye week, the Broncos traveled to Sun Life Stadium to face the Miami Dolphins, where the Broncos had never won in their franchise history. After a scoreless first quarter, the Dolphins grabbed the lead in the second quarter, with field goals of 38 and 36 yards by kicker Dan Carpenter. After a scoreless third quarter, the Dolphins extended their lead in the fourth quarter, with quarterback Matt Moore throwing a 16-yard touchdown pass to tight end Anthony Fasano (with a failed two-point conversion attempt), followed by a 43-yard field goal by Carpenter, giving Miami a 15-0 lead. However, after each team traded punts, the Broncos staged a rally with just over five minutes remaining, with quarterback Tim Tebow throwing a 5-yard touchdown pass to wide receiver Demaryius Thomas to pull to within 15-7 with 2:44 remaining. After the Broncos recovered an onside kick, they subsequently marched down the field, with Tebow connecting on a 3-yard touchdown pass to tight end Daniel Fells, followed by Tebow scrambling for the two-point conversion to send the game into overtime. On the Dolphins' second possession in overtime, Broncos' linebacker D. J. Williams forced a fumble off Moore, giving the Broncos possession at the Dolphins' 36-yard line. Four plays later, kicker Matt Prater, who had missed two field goals in the first half, nailed the game-winning 52-yard field goal. With the win, the Broncos earned their 400th win in franchise history, their first-ever win at Miami in eight tries, and became the first team in NFL history since the AFL-NFL merger to win a game after trailing by 15 or more points with less than three minutes remaining in the fourth quarter. 
Question: How many field goal kicks were missed? 
Answer type: Number 
Output (English): 2.