<prompt> Translate the following text to EnglishKabla ya GE kununua NBC, nje ya kila benki ya lifti katika Rockefeller Center 30 kulikuwa na ishara ya mwelekeo inayoorodhesha kila mfanyakazi aliyefanya kazi kwenye ghorofa hiyo.  <response>: Before GE bought NBC, just outside each bank of elevators at 30 Rockefeller Center was a direction sign listing each employee who worked on that floor. 