(a) What research, analysis or any other type of data-gathering exercise has been undertaken on the current state, needs analysis and upgrade requirements of the Passenger Rail Agency of South Africa train stations, (b) on what dates were the specified exercises done, (c) what were the outcomes of the exercises at each station, (d) who undertook the exercises, (e) what plans have been put in place as a result of the findings of the exercises, (f) who will undertake the specified plans and (g) what are the timelines, timeframes and deadlines in this regard?