求救:关于英语合同句子太长了,该

帮忙翻译一下合同里面的其中一个句子,非常急,谢谢!

For a period of 5 years following the execution of this Agreement or for a period of 5 years following the completion of the last transaction or series of transactions amongst the parties,or amongst the parties and a third-party Contact,whichever is longer,the parties herein mutual agreenot to compete directly or indirectly with each other through the use of proprietary information provide by either party or either party's Contacts.