Question: What is the name of the valley that the city 50 km northeast of The Estancia Maradona is located in?
Sentence (from "Portobuffolé"): Portobuffolé (] ) or Portobuffolè ] (Venetian: "Portobufołè" ) is a "comune" (municipality) in the province of Treviso in the Italian region Veneto, located about 50 km northeast of Venice and about 30 km northeast of Treviso on both the shores of the Livenza river.
Relevant evidence: No