Question: What does "unsub" stand for?
About the article "Person of interest", section "Abstract".

Candidate passages:
Unsub is an American television series that aired on NBC from February 3 to April 14, 1989.
The series revolves around an elite FBI forensic team that investigates serial murderers and other violent crimes.
Unsub is an abbreviation for the unknown subject of an investigation. 
Areas and note-worthy monuments of the Altstadt.Römerberg and its Surroundings.
Greek inscription - what does it stand for? 
ezmlm provides all of the common electronic mailing list functionality: moderated lists, automated subscription and unsubscription, and digest creation.
ezmlm takes advantage of the features of qmail to enable ordinary users to create and to manage mailing lists, without need for superuser privileges.
Unlike some other mailing list management software, ezmlm's user interface is command-based.
The mailing list administrator usually does not have to edit files.
For example, the command to create a new mailing list is ezmlm-make ~/list ~/.qmail-list `whoami`-list host and the commands to (manually) subscribe someone to and unsubscribe someone from that list are ezmlm-sub ~/list mailbox and ezmlm-unsub ~/list mailbox The operation of each individual mailing list is controlled by files in the list's directory (~/list in the aforegiven example).
That directory also contains an archive of all messages sent to the list.
Whether a list is moderated or not is controlled by the existence of a file in the list's directory, named public.
In the aforegiven example, this file would be ~/list/public.
If the file exists, the list is not moderated, and anyone can subscribe to and unsubscribe from the mailing list by sending (empty) electronic mail messages to special -subscribe and -unsubscribe electronic mailboxes.
If the file does not exist, the list is moderated, and only the list owner can change subscriptions using the ezmlm-sub and ezmlm-unsub commands.
The ezmlm-idx extension provides more moderation mechanisms.
Standard ezmlm does not include a web interface, but the ezmlm-web extension provides that functionality.
Ezmlm works very fast since it makes use of database type files, while many other mailing list managers use flat ascii files.
Ezmlm also has a very good security record. 
In the 1981 film "The Great Muppet Caper", Kermit and Fozzie comment on the opening credits as they appear.
When the name of the film's cinematographer with its post-nominal letters appears, Fozzie asks, "What does B.S.C.
stand for?
", to which Kermit perplexedly replies, "I don't know."
Played by Charles Haid, he is first seen in the Season 1 Episode "The Fisher King, Part 1."
Randall was originally happily married with four children and was a schoolteacher.
One night, Randall and his entire family got caught up in a house fire that was caused by faulty wiring as they slept.
Randall tried to save them, but he was only able to save one of his daughters, Rebecca, and was severely burned in the process.
His injuries gradually drove him insane, leading to his incarceration at the Bennington Sanitarium, coincidentally the current residence of Reid's schizophrenic mother, Diana.
Diana taught him about the Fisher King, mythical keeper of the Holy Grail and the obstacle of the Knights of the Round Table.
This caused him to believe that he is the Fisher King, the Holy Grail being Rebecca and the Knights being the BAU, whom he also learned of from Diana.
After being released by the sanitarium, Randall tracked down Rebecca, who had now forgotten about her past and was living a life of drugs and running away, and abducted her, keeping her for two years while her presence was never reported, with her foster-turned-adoptive parents believing she simply ran away again, this time for good.
Deciding it was time to initiate his "quest", Randall stalked the BAU, taking photos of them as they investigated all of their cases in Season One and finding out about their personal information, such as addresses and daily schedules to name a few.
He gets one Marty Harris killed and decapitated post-mortem, later framing Elle for the act as she and Morgan vacation in Jamaica; sends a skeleton key to Reid while he attempts to visit his mother at the sanitarium; delivers Marty's head and a 1963 baseball card to Gideon as he has dinner with Sarah Jacobs; drops off a box containing a rare butterly in a shadow box to JJ; makes a phone call to Hotch at his home; and taunts Garcia online using the alias "Sir Kneighf" (an anagram of the Fisher King), saying, "All Work, No Play."
Hotch arrives in Jamaica and is able to exonerate Elle before the two of them, along with Morgan, return to the BAU headquarters to regroup with the rest of the team.
They share their discoveries and contemplate on what is happening before Garcia arrives and tells them of Sir Kneighf hacking into her account, leaving the possibility that the unsub now has access to all of the FBI's files.
She also tells them that she managed to find the hacker's account and names the unsub as Frank Giles.
The BAU raids his house only to find him dead, impaled on his bed with a medieval sword.
They also find two messages, one written in Frank's own blood and the other engraved on the sword.
They use the latter message to find a music box, which Reid unlocks with the skeleton key that was sent to him.
They find a third message, a sample of Rebecca's hair, and a DVD; when they play it back at the headquarters, they are described of the quest by Randall and are told of the one rule: only the BAU members must participate in the quest and no outside help is allowed.
Hotch is immediately paid a visit by Haley afterwards, who tells him that a man came to their house and gave her a paper written with many numbers.
Deciding that outside help must be allowed, Gideon orders JJ to stage a press conference that Randall later sees, enraging him.
When Elle starts becoming drowsy, Hotch allows her to go home and she is escorted by Agent Anderson, who unknowingly disobeys orders and drops her off instead of staying with her.
Inside her home, Elle is confronted by Randall himself, who yells at her for breaking the one rule before shooting her when she lunges for her gun.
He later writes a message in her own blood before leaving: "Rules.
"Meanwhile, the BAU manages to apprehend the man that approached Haley, who tells them that he was approached by a seriously-wounded man in a hat.
Gideon realizes that the unsub they're looking for is suffering from terrible burn marks.
The BAU then receives a phone call from Randall, who accuses them of breaking the one rule.
When Gideon asks about his burns, Randall quietly snarls that he shot Elle before hanging up.
Gideon and Hotch arrive at the hospital to be informed by Anderson that Elle survived and she is undergoing medical surgery.
He also adds that Elle's FBI badge was stolen and is nowhere to be found.
Randall is later seen giving Rebecca nourishment and tells her that he loves her when she pleads to be released.
Rebecca begins to cry as Randall leaves the room.
Reid manages to find out that the numbers on the paper Haley gave Hotch symbolize certain words from a book written by an author with the surname of Fowles and published in 1963.
Garcia manages to find an author named John Fowles, who had a book called The Collector published in 1963.
Reid realizes that Randall is sending them items that are collected, and when the two of them see the book's cover, they find that it depicts a butterfly, a skeleton key, and a sample of blonde hair, identical to the items sent to the BAU.
Reid calls a librarian who finds the words symbolized by the numbers on the paper, and the final message says, "The Path to the End Began at His Start to Find Her First Calm.
She Sits in a Window with Secrets From Her Knight.
Is It Adventure That Keeps Him Out of Her Sight?"
The BAU uses the message to find out about Rebecca's past, and they interrogate her adoptive parents, who tell them of her deceased family and Randall's full name.
Garcia later finds out that Randall was institutionalized in the same sanitarium as Diana.
The BAU sends someone to retrieve Diana from the sanitarium, despite her fear of flying.
Reid socializes with his mother briefly before she tells him of what she told him years ago that led to his current delusion.
Diana then reveals she was sent a photo of his residence, a mansion of a medieval style located near Quantico.
Reid, Hotch, and Morgan rush to the house with several SWAT agents.
They find Elle's ID and gun, and Reid later finds Randall in his office with a bomb planted on himself.
Randall tells Reid to "ask him the magical question"; Reid realizes that in the myth of the Fisher King, one of the knights asks the Fisher King, who was also badly injured, a question that heals his wounds.
Knowing that asking the question won't work, Reid attempts to tell Randall to stand down, but he refuses.
Reid asks if Randall can forgive himself of the death of his family, and Randall replies, "Can I forgive myself?
No, I can't."
He then blows himself up and Reid manages to escape the explosion in time.
Reid immediately uses a clue hidden in the photo Randall sent Diana to find Rebecca, and she is rescued.
In "No Way Out II: The Evilution of Frank", Rebecca would be murdered by prolific serial killer Frank Breitkopf.
In "Carbon Copy", the BAU would compare him to The Replicator, who, like Randall, stalked the team throughout the season he or she appeared in.