american_megacities.taq

$ java -jar taq.jar american_megacities

Running query american_megacities in global scope 
american_megacities(
 Megacity=Mexico City,
 Country=Mexico,
 Continent=North America
)
american_megacities(
 Megacity=Sao Paulo,
 Country=Brazil,
 Continent=South America
)
american_megacities(
 Megacity=New York City,
 Country=United States,
 Continent=North America
)
american_megacities(
 Megacity=Los Angeles,
 Country=United States,
 Continent=North America
)
american_megacities(
 Megacity=Buenos Aires,
 Country=Argentina,
 Continent=South America
)
american_megacities(
 Megacity=Rio de Janeiro,
 Country=Brazil,
 Continent=South America
)

Description

american_megacities.taq demonstrates a logic selection set. which contains one or more comma-delimited items to match on and enclosed in {} braces. The “american_megacities” template selects cities in either of the North and South America continents

Continent { “North America”, “South America” }


include "mega_city.taq"

template american_megacities (
Megacity, Country, Continent ? {"North America","South America"}
)

query<axiom> american_megacities (mega_city : american_megacities)