manipulation of supply造句

Officials blamed the shortage on a drought and alleged manipulation of supplies by greedy traders and retailers.
If the manipulation of supplies and prices occurred as suggested, Daschle said Thursday, " I don't think there's any doubt that somebody ought to go to jail ."
If the manipulation of supplies and prices occurred as suggested in the memos, Daschle said Thursday, " I don't think there's any doubt that somebody ought to go to jail ."
It's difficult to find manipulation of supply in a sentence. 用manipulation of supply造句挺难的