完全を期すために: マイケルのアドバイスに従って、私は最終的に予想される推論結果を得ました
nano database.properties
#vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
reasoning.schema.graphs = default , http\://www.example.org/mySchema
reasoning.punning.enabled = false
reasoning.type=DL
#^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
stardog-admin db drop -n myDB
stardog-admin db create -n myDB --config database.properties einsteins_riddle.ttl
stardog query myDB --reasoning "SELECT ?p ?o WHERE {einsteins_riddle_en:Englishman ?p ?o}"
+------------------------------+------------------------------+
| p | o |
+------------------------------+------------------------------+
| rdf:type | owl:Thing |
| rdf:type | einsteins_riddle_en:Man |
| einsteins_riddle_en:lives_in | einsteins_riddle_en:house-3 |
| einsteins_riddle_en:smokes | einsteins_riddle_en:Old_Gold |
| einsteins_riddle_en:drinks | einsteins_riddle_en:milk |
| einsteins_riddle_en:owns | einsteins_riddle_en:snails |
+------------------------------+------------------------------+
Query returned 6 results in 00:00:10.482
どうもありがとう!