Which is the correct query to retrieve all game titles, and if present their rel

Question

Which is the correct query to retrieve all game titles, and if present their release date, their series, and their director.

1 SELECT ?title ?releasedate ?series ?director WHERE {
?game rdfs:label ?title .
OPTIONAL { ?game dbo:releaseDate ?releasedate }
OPTIONAL { ?game dbo:series ?series }
OPTIONAL { ?game dbo:director ?director }
} 2 SELECT ?title ?releasedate ?series ?director WHERE {
?game rdfs:label ?title .
?game dbo:releaseDate OPTIONAL { ?releasedate } .
?game dbo:series OPTIONAL { ?series } .
?game dbo:director OPTIONAL { ?director } .
} 3 SELECT ?title ?releasedate ?series ?director WHERE {
?game rdfs:label ?title .
OPTIONAL {
    ?game dbo:releaseDate ?releasedate .
    ?game dbo:series ?series .
    ?game dbo:director ?director }
} 4 SELECT ?title OPTIONAL(?releasedate ?series ?director) WHERE {
?game rdfs:label ?title .
?game dbo:releaseDate ?releasedate .
?game dbo:series ?series .
?game dbo:director ?director .
}

Explanation / Answer

Answer will be 2

SELECT ?title ?releasedate ?series ?director WHERE {
?game rdfs:label ?title .
?game dbo:releaseDate OPTIONAL { ?releasedate } .
?game dbo:series OPTIONAL { ?series } .
?game dbo:director OPTIONAL { ?director } .
}

Line 1 - Data of row title , releasedate , series , director will be highlighted

Line 2 - where game title is present

Line 3 - if releasedate of that game title is present select it else go to series

Line 4- if series of that game title is present select it else go to director

Line 5- if director of that game title is present select it.

If any problem occurs in understanding,just comment it , will try to solve it as soon as possible.Thankyou

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