请教您，我找到一个模板，开始时是下面这么一段话，请问这个模板属于Eb1还是NIW的。多谢
This is to file an I-140 – Immigration Petition for Alien Workers on my own behalf under the category: A member of the professions holding an advanced degree or an alien of exceptional ability – National Interest Waiver. (Sec. 203 (b) (2)).
另外，几个类型我一直弄不清
203(b)(1)(A) Eb1a 这个我确定
其他的，NIW和Eb1b呢，多谢