Task: Question Answering
Input (English): Passage: The government has assembled a National Human Rights Commission that consists of 15 members from various backgrounds. Several activists in exile, including Thee Lay Thee Anyeint members, have returned to Myanmar after President Thein Sein's invitation to expatriates to return home to work for national development. In an address to the United Nations Security Council on 22 September 2011, Myanmar's Foreign Minister Wunna Maung Lwin confirmed the government's intention to release prisoners in the near future. Question: Who extended the offer to the activists ?
Output (English): President Thein Sein