Greece's opposition Socialist party has submitted a censure motion against the government over its efforts to reform the country's pension system _ which will lead to a confidence vote. Socialist party leader George Papandreou has submitted the motion in parliament. The 300-member body will now have three days to debate the motion before holding a confidence vote in the government. If the confidence vote fails, the country's conservative government will collapse. The conservative party has a razor-thin majority of one seat. It has 151 of parliament's 300 deputies, the Associated Press reported.