Assertion: country's lake | /r/CapableOf | drain to the rio de la plata
Facets:
value: from the northern chaco region
type: LOCATION
value: near buenos aires
type: LOCATION
Source sentences:
text: In addition to these regions, Argentina has many large lakes in the Andes, along with the second largest river system in South America, the Paraguay-Parana-Uruguay, that drains from the northern Chaco region to the Rio de la Plata near Buenos Aires.