请帮忙分析这句英文的语法结构,
it is the Right of the People to alter or to abolish it,and to institute new Government,laying its foundation on such principles and organizing its powers in such form,as to them shall seem most likely to effect their Safety and Happiness.
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前面没问题,就是最后一句"as to them shall seem most likely to effect their Safety and Happiness."
请帮我翻译一下并分析下语法结构,