Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Ex Input:
Context: The Browns were making their first trip to San Diego since 2006. The game was back and forth, with neither team leading by more than one possession. The Chargers led 7-3 after the 1st quarter. On the Browns' first drive of the second quarter, QB Josh McCown threw a 34-yard touchdown pass to RB Duke Johnson to put the Browns up 10-7. The teams traded field goals, making it a 13-13 game at halftime. The Browns scored a field goal at the start of the 3rd quarter to go up 16-13. On the Chargers' next drive, QB Philip Rivers led the Chargers to a touchdown, going up 20-16 heading into the 4th quarter. After K Travis Coons kicked a field goal to cut the deficit to 20-19, Rivers led another touchdown drive to put the Chargers up 27-19. On the Browns' next drive, they reached the end zone, assisted by an incredible catch by TE Gary Barnidge on the Chargers' 1 yard line. They converted on the two point conversion to tie the game at 27-27 with just over 2 minutes remaining. The Chargers reached the Browns' 24 yard line with under 50 seconds to play. The Browns began to use timeouts until the Chargers faced 4th down with 2 seconds to play. After the Chargers called timeout, their kicker had an opportunity to win the game with a 39-yard field goal. The 39 yard game winning attempt was off to the right, and the game appeared to be on its way to overtime.. However, CB Tramon Williams was flagged for being offside during the play, giving the Chargers another attempt, this time from 34 yards. The field goal was converted, and the Chargers won 30-27. The Browns committed 12 penalties in the game, including this critical offside penalty. 
 Question: During which quarter did both teams score a field goal?

Ex Output:
second


Ex Input:
Context: Change in gene expression associated with pancreatic cancer could be attributed to the variation in histone posttranslational modifications leading to subsequent remodeling of the chromatin template during transcription. However, the interconnected network of molecules involved in regulating such processes remains elusive. hPaf1/PD2, a subunit of the human PAF-complex, involved in the regulation of transcriptional elongation has oncogenic potential. Our study explores the possibility that regulation of histone methylation by hPaf1 can contribute towards alteration in gene expression by nucleosomal rearrangement. Here, we show that knockdown of hPaf1/PD2 leads to decreased di- and tri-methylation at histone H3 lysine 4 residues in pancreatic cancer cells. Interestingly, hPaf1/PD2 colocalizes with MLL1 (Mixed Lineage Leukemia 1), a histone methyltransferase that methylates H3K4 residues. Also, a reduction in hPaf1 level resulted in reduced MLL1 expression and a corresponding decrease in the level of CHD1 (Chromohelicase DNA-binding protein 1), an ATPase dependent chromatin remodeling enzyme that specifically binds to H3K4 di and trimethyl marks. hPaf1/PD2 was also found to interact and colocalize with CHD1 in both cytoplasmic and nuclear extracts of pancreatic cancer cells. Further, reduced level of CHD1 localization in the nucleus in hPaf1/PD2 Knockdown cells could be rescued by ectopic expression of hPaf1/PD2. Micrococcal nuclease digestion showed an altered chromatin structure in hPaf1/PD2-KD cells. Overall, our results suggest that hPaf1/PD2 in association with MLL1 regulates methylation of H3K4 residues, as well as interacts and regulates nuclear shuttling of chromatin remodeling protein CHD1, facilitating its function in pancreatic cancer cells. 
 Question: Which is the histone residue methylated by MLL1?

Ex Output:
h3k4


Ex Input:
Context: Angels Online or Angel Love Online (ALO; simplified Chinese: ; traditional Chinese: ; pinyin: Tianshi Zhi Lian) is a free-to-play PC and PlayStation 3 2D massively multiplayer online role-playing game developed by UserJoy Technology in Taiwan, and published by Q Entertainment. 
 Question: Who produced or published Angels Online?

Ex Output:

q entertainment