instruction:
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.
question:
Context: Ant & Dec are an English comedy TV presenting duo, consisting of Anthony McPartlin OBE and Declan Donnelly OBE , from Newcastle upon Tyne, England. Formed after their meeting as actors on CBBC's drama, Byker Grove, the duo have led successful careers as television presenters, with hosting credits including SMTV Live, CD:UK, Friends Like These, Pop Idol, Ant & Dec's Saturday Night Takeaway, I'm a Celebrity...Get Me Out of Here!, PokerFace, Push the Button, Britain's Got Talent, Red or Black?, and Text Santa. Due to a difference in height - Ant being the taller at 5ft 8in , and Dec being two inches shorter at 5ft 6in - the pair identify themselves in the media by adopting the use of the 180-degree rule, with the exception of some early publicity shots. In addition to presenting, the duo are accomplished actors - both had leading roles in the 2006 film Alien Autopsy - operate as television producers - they own their own production company, Mitre Television - have presented the annual Brit Awards in 2001, 2015 and 2016, and are former pop musicians who operated under the aliases of their characters from Byker Grove. In a 2004 poll for the BBC, Ant & Dec were named the eighteenth most influential people in British culture. 
 Question: Who is the "Dec" in "Ant & Dec"?
answer:
declan donnelly obe


question:
Context: Alejandro Adem is a professor in the Department of Mathematics at the University of British Columbia since 2005 and the holder of a Canada Research Chair at UBC. 
 Question: What is Alejandro Adem's place of employment?
answer:
university of british columbia


question:
Context: Diamond-Blackfan anemia (DBA) is a congenital bone marrow failure syndrome characterized by a specific deficiency in erythroid progenitors. Since some patients with DBA develop a reduction in thrombocytes and granulocytes with age, we asked whether multipotent hematopoietic progenitors from DBA patients had normal proliferative capacity in liquid expansion cultures. CD34(+) cells derived from DBA patients showed deficient proliferation in liquid culture containing IL-3, IL-6, and SCF. Single CD34(+) CD38(-) cells from DBA patients exhibited deficient proliferation recruitment in a limiting dilution assay containing IL-3, IL-6, SCF, Tpo, FL, and G-CSF or containing IL-3, IL-6, and SCF. Our findings suggest that the underlying hematopoietic defect in DBA may not be limited to the erythroid lineage. Since a fraction of DBA patients have a deficiency in ribosomal protein S19 (RPS19), we constructed lentiviral vectors containing the RPS19 gene for overexpression in hematopoietic progenitors from RPS19-deficient DBA patients. Enforced expression of the RPS19 transgene improved the proliferation of CD34(+) cells from DBA patients with RPS19 mutation. Similarly, enforced expression of RPS19 improved erythroid development of RPS19-deficient hematopoietic progenitors as determined by colony assays and erythroid differentiation cultures. These findings suggest that gene therapy for RPS19-deficient DBA is feasible. 
 Question: In which syndrome is the RPS19 gene most frequently mutated?
answer:

dba