Android has exactly the same way of specifying relationships (I think it comes from vCard spec?); though their list of named constants is much smaller: https:/

Android has exactly the same way of specifying relationships (I think it comes from vCard spec?); though their list of named constants is much smaller: https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/provider/ContactsContract.java#7263 https://android.googlesource.com/platform/frameworks/base/+/...