How to store conditional data in RDF

I want to store some facts in pure RDF data (ttl) like :

:Person :hasGender :Male, :Female ;
             :drink :Liquor, :softDrinks .

if (:someone :hasGender :Male) then
     :someone :drink :Liquor ;
else
     :someone :drink :softDrinks .

:Susan  a :Person ;
       :hasGender :Female .

and then read this rdf data (ttl) by Sparql or other app (rdf4j or rdflib) , and get :

:Susan :drink :softDrinks .

I want to use pure RDF as much as possible to store data, rather than OWL, N3, RDF-star or SHACL, but I can reconstruct a new N3 or shacl file from these rdf data, and then get infered result. I wonder if this is possible in RDF, an how can I modify this RDF data? Thanks.

Solution

I got It done. here is data.ttl :

 @prefix : <http://example.org/#> .
:Person :drink :someLiquid .
:someLiquid :hasRule :rule1, :rule2.
:rule1 :forGender :Male ;
       :beverage :liquor .
:rule2 :forGender :Female ;
       :beverage :softDrinks .       
    
:Susan  a :Person ;
       :hasGender :Female .
:John a :Person ;
       :hasGender :Male .

here is the sparql query:

    PREFIX : <http://example.org/#>
     SELECT ?person ?gender ?beverage
     WHERE {
        :Person :drink :someLiquid .
        :someLiquid :hasRule ?rule .
        ?rule :forGender ?forGender ;
              :beverage ?beverage .
        ?person a :Person;        
             :hasGender ?gender .
      FILTER ( ?gender = ?forGender )
    }

and I get the result:

1    person,   gender,   beverage
2    :Susan,  :Female,  :softDrinks
3    :John,   :Male,    :liquor