Read the following passage and solve the questions based on it.
There are three friends—A, R and U—in a group. Out of these three friends, one always speaks the truth, one always lies and the other one alternates between truth and lies. Exactly one of them is the owner of Cricinfo.com, the other one is the owner of funcinemas.com and the third one is the owner of terrificmail.com, in no particular order.
In a recent interview, each of them was asked—“Which website do you own”? Following is their reply pertaining to the above given question:
A: I own cricinfo.com. U owns funcinemas.com.
U: I own cricinfo.com. R owns terrificmail.com.
R: A owns funcinemas.com. U owns cricinfo.com.
Who among the three is an alternator?