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The small room can accomodate up to 8 people . By tightening or loosening parametric values specifying the time constraints , the JIT scenarios can cover a wide spectrum of situations , ranging from distaster managment with extremely strict timing constraints to assistive learning with more relaxed timing constraints . The problems are such that no country alone can come up with all the answers . NSBs can appeal at this stage on matters affecting safety if they disagree with a positive vote .