REST API: Correct values for Gender

Hi all

I trying to update filed Gender using REST API.

From server GET call I recive values 0, 1 or 2. But on PUT with different number value does not change.

Then I searched this community and found values "Male", "Female" and "NotSet" - does not work for me too!
All other fields updates correctly.

Also tried to use profile field "core_Gender"

{
"_ProfileFields_Hobbies" : "",
"_ProfileFields_singlelist" : "value2",
"_ProfileFields_core_Website" : "",
"_ProfileFields_Yahoo IM" : "",
"Gender" : "Female",
"_ProfileFields_decimalpf" : "0",
"SendEmail" : "false",
"_ProfileFields_Title" : "",
"_ProfileFields_Google IM" : "",
"AccountStatus" : "Approved",
"_ProfileFields_dtpf" : "2019-05-27 09:25:00Z",
"Language" : "en-US",
"_ProfileFields_checkpf" : "True",
"_ProfileFields_numberpf" : "14",
"DisplayName" : "test1",
"_ProfileFields_Office" : "",
"_ProfileFields_core_Public Email" : "",
"_ProfileFields_Occupation" : "",
"_ExtendedAttributes_EnableStartConversations" : "1",
"Password" : "test111222",
"_ProfileFields_core_Language" : "en-US",
"_ProfileFields_lastName" : "",
"_ProfileFields_Email" : "",
"_ProfileFields_Education" : "",
"_ProfileFields_core_Gender" : "Female",
"_ProfileFields_Windows Live IM" : "",
"_ProfileFields_Office Phone" : "",
"_ProfileFields_Twitter" : "",
"Bio" : "my long bio...!!!",
"_ProfileFields_AOL IM" : "",
"_ProfileFields_firstName" : "",
"_ProfileFields_Gallery" : "",
"_ProfileFields_core_Birthday" : "0001-01-01 00:00:00",
"_ProfileFields_Mobile" : "",
"_ProfileFields_Department" : "",
"_ExtendedAttributes_EnableUserSignatures" : "True",
"Username" : "test1",
"_ProfileFields_datepf" : "2020-05-06 21:00:00Z",
"TimeZoneId" : "UTC",
"_ProfileFields_core_Location" : "",
"PrivateEmail" : "test111224@mail.com",
"Id" : "2138",
"_ProfileFields_Facebook" : "",
"_ProfileFields_Blog" : "",
"_ProfileFields_enterpriseId" : "",
"_ProfileFields_multilist" : "value3,value4",
"Location" : ""
}