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

[EX Q]: Selenoproteins contain the 21st amino acid selenocysteine which is encoded by an inframe UGA codon, usually read as a stop. In eukaryotes, its co-translational recoding requires the presence of an RNA stem-loop structure, the SECIS element in the 3 untranslated region of (UTR) selenoprotein mRNAs. Despite little sequence conservation, SECIS elements share the same overall secondary structure. Until recently, the lack of a significantly high number of selenoprotein mRNA sequences hampered the identification of other potential sequence conservation. In this work, the web-based tool SECISaln provides for the first time an extensive structure-based sequence alignment of SECIS elements resulting from the well-defined secondary structure of the SECIS RNA and the increased size of the eukaryotic selenoproteome. We have used SECISaln to improve our knowledge of SECIS secondary structure and to discover novel, conserved nucleotide positions and we believe it will be a useful tool for the selenoprotein and RNA scientific communities. SECISaln is freely available as a web-based tool at [Link]
[EX A]: What is the name of the stem loop present in the 3' end of genes encoding for selenoproteins?

[EX Q]: The Patriots travelled to the Metrodome for a Monday Night Football showdown with the Minnesota Vikings, who, like the Patriots, boasted an excellent run defense. The Patriots, who took to the air with a spread offense for the entire game, opened with a seven-play, 86-yard strike that ended with a touchdown pass from Brady to wide receiver Reche Caldwell. Their next drive was for 93 yards which resulted in a 23-yard Gostkowski field goal. And just before halftime the Patriots moved 74 yards in 11 plays to take a 17-0 lead on a nine-yard scoring toss to tight end Benjamin Watson. The only Vikings score of the game came on a 71-yard punt return by Mewelde Moore in the third quarter; Laurence Maroney immediately answered on the ensuing kickoff, with a 77-yard return to Minnesota's 21-yard line, his second return of over 70 yards in as many weeks. The Patriots' lead grew to 17 after a seven-yard touchdown reception by Brown with 9:03 in the third quarter and then became 31-7 with a touchdown catch by Jackson. The Patriots defense also intercepted four passes from quarterbacks Brad Johnson and Brooks Bollinger. On Bollinger's first drive after relieving Brad Johnson he was sacked three times in a row for a net loss of 23 yards. With their fourth straight victory, the Patriots advanced to 6-1.This was the Patriots' third and final game played in the Metrodome.
[EX A]: Which team scored more touchdowns, the Patriots or the Vikings?

[EX Q]: (online: The Great Battle of Galicia - A study in strategy ) Map of the Battle of Rawa Rickard, J. (23 February 2001), Battle of Rava Ruska, 3-11 September 1914
[EX A]:
On what date did Battle of Rawa end?