The values we've been storing, like "Shenyang" are strings. String values are text between double quotes.
Strings can cantain all sorts of letters and symbols, including spaces, like the value "Dongling road 120, Shenyang City, Liaoning Province, China".
>>> city = "Shenyang"
>>> address = "Dongling road 120, Shenyang City\
... Liaoning Province, China"