4899
Shenzhen was a sleepy fishing village in the Pearl River delta , next to Hong Kong , when it was decreed a special economic zone in 1980 by the paramount leader Deng Xiaoping .
 location contains: Hong Kong, Shenzhen
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
 Entity Pairs:  Hong Kong, Shenzhen 
Answer:
 location contains: Hong Kong, Shenzhen