How many goals did the Rangers lose by in the April 18 game with Ottawa?
return the  Rangers ;return Ottawa ;return goals of #1 ;return goals of #2 ;return #3 in  the  April 18 game ;return #4 in  the  April 18 game ;return number of  #5 ;return number of  #6 ;return the  difference of #8 and  #7
['select', 'select', 'project', 'project', 'filter', 'filter', 'aggregate', 'aggregate', 'arithmetic']