In the context of the input sentence, determine the relationship between 'pure' and 'channel'.
Options: stock exchange, original broadcaster, headquarters location, owned by

And the digital use of our customers went up again dramatically, with 87% of interactions being pure mobile, and with 41% of our clients, being only on the mobile and then we slowly transform our clients from assisted channel such as chat or call center, or even branches to -- to digital banking or to mobile banking.
original broadcaster