https://evisaforms.state.gov/ds156.asp

This quiestion icnlude parents, childrens, fiances, but not nieces/nephews

37. Are Any of The Following Persons in The U.S., or Do They Have U.S. Legal Permanent Residence or U.S. Citizenship?
Mark YES or NO and indicate that person's status in the U.S. (i.e., U.S. legal permanent resident, U.S. citizen, visiting, studying, working, etc.).
Yes No Husband/Wife
SelectHusbandWife Yes No Fiance/Fiancee
SelectFianceFiancee Yes No
Yes No Father/Mother
SelectFatherMotherBoth Yes No Son/Daughter
SelectSonDaughterBoth Brother/Sister
SelectBrotherSisterBoth