Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
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Question: The Eagles looked to win their 6th game in a row against the winless 49ers. The Eagles got off to a slow start, only leading 3-0 after the first quarter. Late in the second quarter, the Eagles blew the game open. Carson Wentz found tight end Zach Ertz for a 1-yard touchdown in the back of the end zone off of a bootleg pass, and Jalen Mills intercepted rookie QB C.J. Beathard and returned it 37 yards for a touchdown. The 49ers appeared to have some life in the third quarter, following a Carson Wentz interception, leading to a Matt Breida 22 yard touchdown reception. However, the Eagles responded, with Wentz connecting with Alshon Jeffery for a 53-yard touchdown, putting the game out of reach. The Eagles went on to win 33-10 and advanced to 7-1 on the season. Despite the win, the Eagles played a sloppy game in a rainy afternoon at the Linc.

Answer: Which player had the longest touchdown catch?


Question: On at least one occasion they succeeded and formed the Kingdom of Kurdistan, which lasted from September 1922 until July 1924.

Answer: Which year did Kingdom of Kurdistan end?


Question: Selenocysteine (Sec) is co-translationally incorporated into selenoproteins at a reprogrammed UGA codon. In mammals, this requires a dedicated machinery comprising a stem-loop structure in the 3' UTR RNA (the SECIS element) and the specific SECIS Binding Protein 2. In this report, disorder-prediction methods and several biophysical techniques showed that ca. 70% of the SBP2 sequence is disordered, whereas the RNA binding domain appears to be folded and functional. These results are consistent with a recent report on the role of the Hsp90 chaperone for the folding of SBP2 and other functionally unrelated proteins bearing an RNA binding domain homologous to SBP2.

Answer:
What is the name of the stem loop present in the 3' end of genes encoding for selenoproteins?