The documentation states that
"gender" : "female"
is a valid attribut for a recommend-request.
By changing the value to "male" doesn't really change the content of the result sent by the PP, even for gender relevant contextKeywords like "Geburt", "Kindererziehung" or "giving birth".
It seems that different results are based on the response time of the data sources.
Is "male" the correct opposite to "female"?