Data: Amatriciana sauce, country, Italy; Italy, leader, Sergio Mattarella

Sergio Mattarella is the leader of Italy, which is also where Amatriciana sauce comes from.

Data: Egg Harbor Township, New Jersey, isPartOf, New Jersey; Atlantic City International Airport, elevationAboveTheSeaLevel, 23.0; Atlantic City International Airport, location, Egg Harbor Township, New Jersey; Egg Harbor Township, New Jersey, country, United States

Atlantic City International Airport, located in Egg Harbor Township, New Jersey (U.S.), is 23.0 meters above sea level.

Data: Jamaica, leader, Patrick Allen (politician)
The leader of Jamaica is Patrick Allen.