Huge pipes that used to expel wastewater to prevent flooding are now being used to pipe water into the city from the dam system.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: Huge pipes that used to expel wastewater to prevent flooding are now being used to pipe water into the city from the dam system. ### Response: .