Thanks, I read the information, would you

Would you please explain this part to me? I am afraid I understand incorrectly.

"You must aggregate gifts received from related parties. For example, if you receive $60,000 from nonresident alien A and $50,000 from nonresident alien B, and you know or have reason to know they are related, you must report the gifts because the total is more than $100,000. Report them in Part IV of Form 3520. Treat gifts from foreign trusts as trust distributions you report in Part III of Form 3520."

alien A 和 alien B 是有关系？还是说认识？比如： 我妹妹还我不到＄５万， 我劳工妹妹给了不到＄５万，我朋友还乐了我不到＄５万，那我到底申不申报呀。  谢谢。