Question: Words of Radiance was a part of which series written by Brandon Sanderson?

Context articles: Rithmatist series
The Gathering Storm (novel)
Words of Radiance
Mistborn Adventure Game
Oathbringer
Mistborn series
Elantris
The Stormlight Archive
White Sand (graphic novel)
The Way of Kings

The Rithmatist series is a young adult fantasy series written by American author Brandon Sanderson.
 At least two books are planned in the series: The Rithmatist (2013) and a second volume titled The Aztlanian is planned.
The Gathering Storm is a fantasy novel by American writers Robert Jordan and Brandon Sanderson, the twelfth book in the series "The Wheel of Time".
 It was incomplete when Jordan died on September 16, 2007, from cardiac amyloidosis.
 His widow Harriet McDougal and his publisher Tom Doherty chose Sanderson to continue the book.
Words of Radiance is a 2014 epic fantasy novel written by American author Brandon Sanderson and the second book in "The Stormlight Archive" series.
 The novel was published on March 4, 2014 by Tor Books.
 "Words of Radiance" consists of one prologue, 89 chapters, an epilogue and 14 interludes.
 It is preceded by "The Way of Kings" and followed by "Oathbringer".
The Mistborn Adventure Game is a pen and paper role playing game that was published in 2011 by Crafty Games and is a licensed release based on American author Brandon Sanderson's "Mistborn" novel series.
 Sanderson was involved in the game's creation and the game is set in Scadrial; the World created by the "Mistborn" series.
 The initial "Mistborn Adventure Game" book was released on December 16, 2011.
 Since 2011, two supplementary material books have been published.
 The first supplement was released March 2014 and is called "Terris: Wrought of Copper".
 The second supplement was released on August 3, 2014 and is called "Alloy of Law", not to be confused with the fourth "Mistborn" book called "".
Oathbringer is an upcoming 2017 epic fantasy novel written by American author Brandon Sanderson and the third book in "The Stormlight Archive" series.
 It will be published by Tor Books and is scheduled to be released on November 14, 2017.
 "Oathbringer" will consist of one prologue, 122 chapters, an epilogue and 14 interludes.
 It is preceded by "Words of Radiance".
Mistborn is a series of epic fantasy novels written by American author Brandon Sanderson and published by Tor Books.
 The first series, published between 2006 and 2008, consists of "", "", and "".
Elantris is a fantasy novel written by American author Brandon Sanderson.
 It was first published on April 21, 2005 by Tor Books and is significant as Sanderson's first published book.
The Stormlight Archive is an ongoing epic fantasy series written by American author Brandon Sanderson.
 Planned as the first of ten books, "The Way of Kings" was published on August 31, 2010 by Tor Books in the United States.
 The second book, "Words of Radiance", was published on March 4, 2014.
 The third book in the series, titled "Oathbringer", is scheduled to be released on November 14, 2017.
White Sand is a fantasy graphic novel series written by American author Brandon Sanderson and Rik Hoskin, with artwork by Julius Gopez.
 The first part of the planned trilogy, "White Sand Volume I", was published on June 28, 2016.
The Way of Kings is a 2010 epic fantasy novel written by American author Brandon Sanderson and the first book in "The Stormlight Archive" series.
 The novel was published on August 31, 2010 by Tor Books.
 "The Way of Kings" consists of one prelude, one prologue, 75 chapters, an epilogue and 9 interludes.
 It was followed by "Words of Radiance" in 2014.