Tell me the Greek deity of sibling of Zeus and that contains the word poseidon in it's name?
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q22989102 . ?sbj wdt:P3373 wd:Q34201 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'poseidon')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
greek deity: Q22989102 zeus: Q34201