3436
The document scoped out the technology and outlined a notional route where such a transport system might be built : between the San Francisco Bay Area and the mode of transport , at an estimated total cost of .
 location: San Francisco Bay Area
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: San Francisco Bay Area