Familiarize yourself with family relationship terms, for male, female, and gender-neutral people. When you start this project, you'll see a tree that represents a family, with each node representing a member of the family. To use this project, drag from one node to another, like you're drawing a line to connect them, then their relationship will be displayed on the bottom of the screen. You can use the gender buttons below the relationship labels to see the terms for different genders. They are set to gender-neutral by default. Note that the terms "nibling" and "pibling" aren't standardized; there aren't standard gender-neutral/nonbinary equivalent terms for nephew/niece or uncle/aunt, but "nibling" and "pibling" are terms people came up with and use often.