<prompt> Yakha inguqulo eyinkimbinkimbi yalesi sigwebo E-UK, incwadi yemithetho yokusebenza ibizwa ngokuthi Operational Concept for the GB Mainline Railway.  <response>: Yiqiniso, inguqulo eyinkimbinkimbi yomusho ithi EBrithani, incwadi yemithetho yokusebenza ibizwa ngokuthi GE RT8000 Rule Book Amendments to ERTMS modules noma eyaziwa ngokuthi Rule - book ngabasebenzi besitimela. 