(a) What was the purpose of her attendance at the 45th Annual Rainbow Push Coalition conference held in Chicago, United States of America, from 28 June 2016 to 2 July 2016, (b) (i) who accompanied her on the specified trip and (ii) why did each of the specified persons accompany her, (c) what was the total cost of the specified trip and (d) where did (i) she and (ii) each person accompanying her stay?