How many years before the Prime Minister Venizelos in 1910 was invited until he began his mission in 1911?
return the  Prime Minister Venizelos in  1910 was  invited ;return he began his mission in  1911 ;return year of #1 ;return year of #2 ;return difference of #3 and  #4
['select', 'select', 'project', 'project', 'arithmetic']