Passage: On 13 December 2007, Prime Minister Manasseh Sogavare was toppled by a vote of no confidence in Parliament, following the defection of five ministers to the opposition. It was the first time a prime minister had lost office in this way in Solomon Islands. On 20 December, Parliament elected the opposition's candidate (and former Minister for Education) Derek Sikua as Prime Minister, in a vote of 32 to 15.

Question: Who was the prime minister of solomon island in June 2007?
Manasseh Sogavare