Sentence: Located in Athens, the Olympic Stadium is the ground for AEK Athens FC. The manager of which is Gus Poyet, whose club is Real Zaragoza, and who has played for Chelsea F.C.

Question: What structured data could we extract from this sentence?

A: Olympic Stadium (Athens), location, Athens; AEK Athens F.C., manager, Gus Poyet; Gus Poyet, club, Real Zaragoza; AEK Athens F.C., ground, Olympic Stadium (Athens); Gus Poyet, club, Chelsea F.C.

Sentence: Alhambra has its maiden voyage on July 7th, 1855 and was 63800.0 millimetres long.

Question: What structured data could we extract from this sentence?

A: Alhambra, maidenVoyage, 1855-07-07; Alhambra, length, 63800.0 (millimetres)

Sentence: Arrabbiata sauce comes from Italy where the leader is Pietro Grasso and Rome is the capital city.

Question: What structured data could we extract from this sentence?

A:
Arrabbiata sauce, country, Italy; Italy, leader, Pietro Grasso; Italy, capital, Rome