original_query: Who are the key individuals involved in the investigation of possible collusion and corruption in the contracts signed between the Portuguese Ministry of Economy and EDP in 2007?
query: Who are the key individuals involved in the investigation of possible collusion and corruption in the 2007 contracts between the Portuguese Ministry of Economy and EDP?
answer: Key individuals involved include António Mexia, Manso Neto (from EDP), Manuel Pinho (from the Portuguese Ministry of Economy), and Vítor Gaspar (former Minister of Finance, whose actions are under scrutiny for potentially suppressing information about excessive rents).