-- Cable telecoms company Liberty Global (NasdaqGS: LBTYA - news ) 's Belgian subsidiary Telenet (Other OTC: TLGHF - news ) to buy mobile network operator Base from Dutch group KPN (notified Aug. 17/deadline extended to Oct. 5 from Sept. 21 after Liberty Global offered commitments)
In the context of the input sentence, determine the relationship between 'Telenet' and 'Base'.
Options: owner of, location of formation, platform, original broadcaster