1 - Retorne todos os indivíduos do tema (Astronauta)
PREFIX dbo: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?Astronaut ?Astronaut_Label WHERE {
    ?Astronaut rdf:type dbo:Astronaut.
    ?Astronaut rdfs:label ?Astronaut_Label
    FILTER((LANGMATCHES(LANG(?Astronaut_Label), "en")) && (LANGMATCHES(LANG(?Astronaut_Label), "en")))
}

2 - Retorne o número de indivíduos do tema (Astronauta)
PREFIX dbo: <http://dbpedia.org/ontology/>
SELECT COUNT(*) {
    SELECT DISTINCT ?Astronaut ?Astronaut_Label WHERE {
        ?Astronaut rdf:type dbo:Astronaut.
        ?Astronaut rdfs:label ?Astronaut_Label
        FILTER((LANGMATCHES(LANG(?Astronaut_Label), "en")) && (LANGMATCHES(LANG(?Astronaut_Label), "en")))
    }
}

3 - Retorne o nome de indivíduos do tema que tenham alguma característica específica (Nascido nos Estados Unidos)
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT DISTINCT ?Astronaut ?Astronaut_Label ?Country ?Country_Label
WHERE {
    ?Astronaut a dbo:Astronaut.
    ?Astronaut rdfs:label ?Astronaut_Label.
    ?Astronaut dbo:birthPlace ?Country.
    ?Country a dbo:Country.
    ?Country rdfs:label ?Country_Label.
    FILTER((LANGMATCHES(LANG(?Astronaut_Label), "en")) && (LANGMATCHES(LANG(?Astronaut_Label), "en")))
    FILTER((LANGMATCHES(LANG(?Country_Label), "en")) && (LANGMATCHES(LANG(?Country_Label), "en")) && ((STR(?Country_Label)) = "United States"))
}
4 - Retorne o nome de indivíduos do tema que tenham duas caraterísticas específicas ao mesmo tempo (Nascido nos Estados Unidos && Estado Oklahoma)
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT DISTINCT
?astronaut ?astronaut_Label ?country ?country_Label ?city ?city_Label
WHERE{
    ?astronaut a dbo:Astronaut.
    ?astronaut rdfs:label ?astronaut_Label.
    ?astronaut dbo:birthPlace ?country.
    ?astronaut dbo:birthPlace ?city.
    ?country a dbo:Country.
    ?country rdfs:label ?country_Label.
    ?city a dbo:City.
    ?city rdfs:label ?city_Label.
    FILTER((LANGMATCHES(LANG(?astronaut_Label), "en")) && (LANGMATCHES(LANG(?astronaut_Label), "en")))
    FILTER((LANGMATCHES(LANG(?country_Label), "en")) && (LANGMATCHES(LANG(?country_Label), "en")) && ((STR(?country_Label)) = "United States"))
    FILTER((LANGMATCHES(LANG(?city_Label), "en")) && (LANGMATCHES(LANG(?city_Label), "en")) && (REGEX(?city_Label, "Oklahoma", "i")))
}

5 - Retorne o nome de indivíduos do tema que tenha uma característica ououtra característica específica (Nascido na Russia OU Ano Nascimento > 1960)
**NÃO FOI POSSÍVEL FILTRAR A DATA PARA (en) POR ISSO RESULTADOS REPETIDOS**

PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT DISTINCT ?astronaut_Label ?astronaut_birth_date ?country_Label
WHERE {
    ?astronaut a dbo:Astronaut.
    ?astronaut rdfs:label ?astronaut_Label.
    ?astronaut dbo:birthDate ?astronaut_birth_date.
    ?astronaut dbo:birthPlace ?country.
    ?country a dbo:Country.
    ?country rdfs:label ?country_Label.
    FILTER((LANGMATCHES(LANG(?astronaut_Label), "en")) && (LANGMATCHES(LANG(?astronaut_Label), "en")))
    FILTER(((xsd:dateTime(?astronaut_birth_date)) > "1960-01-01T23:59:59-03:00"^^xsd:dateTime) || (LANGMATCHES(LANG(?country_Label), "en")) && ((STR(?country_Label)) = "Russia"))
}

6 - Retorne o nome de indivíduos do tema que cruze dados com outra entidade (Astronaut/Contry)

PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT DISTINCT ?astronaut ?astronaut_Label ?country ?country_Label
WHERE {
    ?astronaut a dbo:Astronaut.
    ?astronaut rdfs:label ?astronaut_Label.
    ?astronaut dbo:birthPlace ?country.
    ?country a dbo:Country.
    ?country rdfs:label ?country_Label.
    FILTER((LANGMATCHES(LANG(?astronaut_Label), "en")) && (LANGMATCHES(LANG(?astronaut_Label), "en")))
    FILTER((LANGMATCHES(LANG(?country_Label), "en")) && (LANGMATCHES(LANG(?country_Label), "en")) && ((STR(?country_Label)) = "China"))
}