You will be given a definition of a task first, then some input of the task.
This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning).
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.

Passage: Coming off their big home win over San Francisco, the Steelers traveled to St. Louis to take on the Rams in the Edward Jones Dome. After a long delay before the game due to the field catching fire from a pyrotechnical error during the Rams' entrance, the game got underway. Pittsburgh got on the board early with a Josh Scobee field goal, and held the Rams scoreless for the first quarter. Early in the second quarter, Rams' kicker Greg Zuerlein gave them a field goal, tying the game. But, the returning Le'Veon Bell scored on a one-yard run in the second quarter; Pittsburgh failed to convert on a two-point play, but lead 9-3. The score remained this way for most of the game, and neither team scored in the third quarter. Quarterback Ben Roethlisberger injured his left knee mid-third quarter; he was carted off-field and Michael Vick replaced him for the remainder of the game. Zuerlein added to the Rams' score with another field goal, inching the Rams closer 9-6. But, Scobee kicked another field goal for the Steelers, increasing their lead 12-6. St. Louis failed to convert late in the game, and Vick kneeled down to end the game. With their win and a Cleveland loss to Oakland, the Steelers improved to 2-1 and took sole possession of second in the AFC North.
Output:
What delayed the game?