Given a part of privacy policy text, identify the type of personal information which is collected, used, tracked or retained. The type of information should be present inside the given policy text, answer as 'Not Specified' otherwise

[EX Q]: A user's contact information is retained for an unspecified duration to perform a requested service, and then it is deleted..
[EX A]: Contact

[EX Q]: The site collects your IP address or device IDs for an unspecified purpose. Collection happens on the mobile website.
[EX A]: IP address and device IDs

[EX Q]: You can opt in for the use of contact information by a third party, which uses it for a basic service or feature.
[EX A]:
Contact

