A subset of tautology is RAS syndrome in which one of the words represented by an acronym is then repeated outside the acronym: "ATM machine", "HIV virus", "PIN number", "RIP in peace" and "RAID array". These phases expand to "automated teller machine machine", "human immunodeficiency virus virus", "personal identification number number", "rest in peace in peace" and "redundant array of independent disks array", respectively. "RAS syndrome" is itself a tongue-in-cheek example of the RAS syndrome in action; it expands to "Redundant Acronym Syndrome syndrome". Another common redundancy is the phrase "i ily you", an 'msn speak' phrase which literally means "i i love you you".