6543
He advised against a canal , saying it would quickly fill up with sand , and assisted in the building of a railway between Alexandria and Cairo , with two tubular bridges that he had designed .
 location: Alexandria; location: Cairo
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: Alexandria; location: Cairo