Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Example Input: It is unanimously accepted that there is an unmet need for pain medications that are both effective and safe. Unfortunately, no really novel analgesics have been approved over the past three decades. In view of both experimental and clinical evidence of a major role for nerve growth factor (NGF) in the generation and maintenance of a wide range of pain states, drug discovery efforts focusing on the development of anti-NGF agents have aroused particular interest. Several humanized anti-NGF monoclonal antibodies (mAbs) have entered clinical trials as potential analgesics. In this respect, tanezumab is at an advanced stage of clinical development while fulranumab, fasinumab and ABT-110, previously known as PG110, are in early phases of clinical development. This Current Opinion article aims at describing the rationale for targeting NGF for pain, reviewing the analgesic efficacy and safety of anti-NGF agents based on data from fully published studies, conference abstracts, and the US Food and Drug Administration (FDA) website, and discussing the possible future of these agents in managing chronic pain. Anti-NGF mAbs produced significant pain relief and functional improvement in patients with osteoarthritis of the knee and/or hip. Conversely, studies in non-specific lower back pain generated mixed results; overall, this condition appeared to be less responsive to anti-NGF agents than osteoarthritis. Finally, there was no conclusive evidence of the effectiveness of anti-NGF mAbs in some types of chronic visceral or neuropathic pain. Furthermore, these studies raised safety concerns about anti-NGF mAbs. As a class, these drugs may cause or worsen peripheral neuropathies. But the most problematic issue-which prompted the FDA to place studies of these compounds on clinical hold in 2010-was rapid joint destruction leading to joint replacement surgery. The aetiologies of these side effects have been much debated and their pathophysiology is poorly understood. After an Arthritis Advisory Committee meeting held in March 2012, pharmaceutical companies negotiated with the FDA on the conditions for restarting clinical studies. Although the FDA lifted its clinical hold, there remain many unresolved issues about the long-term efficacy and safety of anti-NGF mAbs. While acknowledging that the future of these drugs is unforeseeable, it appears that they may not be the safe and effective painkillers that have been awaited for decades.
Example Output: What is the target of tanezumab?

Example Input: V849 Ophiuchi or Nova Ophiuchi 1919 was a nova that lit up in 1919 in the constellation Ophiuchus and reached a brightness of 7.4 mag.
Example Output: What constellation is V849 Ophiuchi a part of?

Example Input: The Indianapolis Colts came into a crucial divisional matchup with the Jacksonville Jaguars, with added importance after the season opening loss to the Texans. With the first possession of the ballgame, the Colts drove down the field with a mix of pass and run plays, scoring the opening touchdown of the game. However, Jacksonville returned the favor by going 76yards to tie the game up, and by the end of the first quarter the game was tied at 7-7. In the second quarter Maurice Jones-Drew scored on a touchdown run giving the Jaguars their first lead of the day, with the Colts eventually responded and tying the up 14-14 going into halftime. With the beginning of the second half both teams failed to score on their next possessions, with the Colts punting to the Jaguars midway through the third quarter. David Garrard threw his first touchdown pass of the day, giving the Jaguars a 21-14 lead towards the end of the third quarter. With the Colts trailing midway through the fourth quarter, Peyton Manning drove the team down the field to score on a Joseph Addai run. With the Jaguars responding and the Colts driving down the field to tie with 0:52 left, the game was a 28-28 with less than thirty seconds in the game. Jacksonville was able to get two big plays on their last drive of the game setting up Josh Scobee for a 59-yard field goal, which was good. The Indianapolis Colts started 0-2 in the AFC South for the first time following this loss, dropping out of first place and falling behind the Houston Texans.
Example Output:
The game was tied before the beginning of what quarter?