2720
It was concluded in Madrid and opened for signature on October 4 , 1991 and entered into force on January 14 , 1998 .
 location: Madrid
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 location: Madrid