https://docs.google.com/spreadsheets/d/1H9YymBrAu-ART85fzOKf52umidd1ui-lU4txOpbAC5k/edit#gid=600291584

Gender can be "m", "f" or "u" as defined in the schema. I want to see in the UI possible options when applying filtering e.g.

filter(Person<a>/gender=["m", "f", "u"])