13212
Some of the projects Cheung Kong Holdings is currently developing in Hong Kong : Apart from the core business of property development  Cheung Kong Holdings  ' ventures include TOM Group Limited ( together with  Hutchison Whampoa  ) iMarkets Ltd iBusiness Corporation Limited CK Communications Ltd Excel Technology International Holdings Ltd mReferral Corporation ( HK ) Ltd and Beijing Net-Infinity Technology Development Co. Ltd .
 subsidiaries: Cheung Kong Holdings, Hutchison Whampoa
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
 Entity Pairs:  Cheung Kong Holdings, Hutchison Whampoa 
Answer:
 subsidiaries: Cheung Kong Holdings, Hutchison Whampoa