Question: In Batman: Streets of Gotham, what are the names of the Gotham city sirens?
Context: Gotham City ( ), or simply Gotham, is a fictional city appearing in American comic books published by DC Comics, best known as the home of Batman.  Gotham City was first identified as Batman's place of residence in "Batman" #4 (Dec. 1940) and has since been the setting of most stories featuring the character. Batman: Gotham County Line is a three-issue American comic book limited series written by Steve Niles, known for his series "30 Days of Night", and illustrated by Scott Hampton.  It follows Batman as a series of ritual murders outside Gotham City leads him into a macabre supernatural realm. Batman: GCPD, subtitle "Gotham City Police Department" on the cover trade dress, was a comic book miniseries written in 1996 by Chuck Dixon and drawn by Jim Aparo and Bill Sienkiewicz.  Lasting four issues and detailing the exploits of the Gotham City police department, it precedes the better known "Gotham Central" by several years. The Gotham City Police Department (GCPD) is a fictional police department appearing in American comic books published by DC Comics.  The GCPD services Gotham City and is typically depicted in stories featuring the superhero Batman. "Cataclysm" is an 18 chapter DC Comics crossover story arc that ran through the various "Batman" family comics from March to May, 1998.  The plot of the storyline centers on Gotham City being hit by a massive earthquake, the epicenter of which is less than a mile from Wayne Manor.  In the wake of the destruction, Batman and his allies join the frantic rescue efforts around the devastated city, which soon spirals into chaos.  This story arc would act as a catalyst for the Batman comics and its spin-off titles, signaling the beginning of nearly 2 years of storylines that would spring forth in the earthquake's aftermath, culminating in the year-long "Batman: No Man's Land" saga.  "Cataclysm" itself takes place a short time after the events of "" and "," two crises which also nearly resulted in Gotham City's destruction. Batman: The Dark Knight was an American comic book ongoing series, written and penciled by David Finch and featuring Batman.  One of two new ongoing titles to feature Bruce Wayne after the "" storyline, "The Dark Knight" depicts Bruce Wayne's life in Gotham City following his new global commitment to the newly established "Batman Incorporated".  In Finch's words, "The stories I'm telling are all about relationships and connections he has in Gotham City that he can't walk away from." Batman: Streets of Gotham is an American comic book written by Paul Dini, with art by Dustin Nguyen.  The series stars Dick Grayson as the new Batman and ties into Grant Morrison's overarching "" story and the new "Gotham City Sirens" monthly.  The series ran for 21 issues, from 2009 to 2011. Gotham City Sirens is an American comic book series was written by Paul Dini with art by Guillem March and published by DC Comics.  The term "Gotham City Sirens" refers to three of the most popular female villains that inhabit Gotham City, which are Catwoman, Harley Quinn, and Poison Ivy. Gotham Central is a police procedural comic-book series that was published by DC Comics.  It was written by Ed Brubaker and Greg Rucka, with pencils initially by Michael Lark.  The story focused on the Gotham City Police Department and the difficulties of its officers living and working in Gotham City, home of Batman. Lego Batman: The Movie – DC Super Heroes Unite is a direct-to-video animated superhero action comedy film based on the video game "".  Though the film has cutscenes from the video game, the gameplay is replaced by new scenes with the same actors.  The plot revolves around Lex Luthor and the Joker teaming up to destroy Gotham City with Batman and Robin teaming up with the Justice League in order to save Gotham.  The film was released on Blu-ray and DVD on 21 May 2013.
Answer: Catwoman, Harley Quinn, and Poison Ivy.