All exchange documents that import a NIEM generated sub-schema use the same meaning or semantics for that data element.
对于一个数据元素，导入NIEM生成的子模式的所有交换文档使用相同的含义或语义。
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Here crowds are shown gathered outside the Sub Treasury Building (now Federal Hall National Memorial) next to the statue of George Washington, which faces the New York Stock exchange.