2018-4: What's Your Sign?

The Chinese animal zodiac is a repeating cycle of 12 years, with each year being represented by an animal.

The signs for the last 12 years are:

2018 Dog

2017 Rooster

2016 Monkey

2015 Goat

2014 Horse

2013 Snake

2011 Rabbit

2012 Dragon

2010 Tiger

2009 Ox

2008 Rat

2007 Pig

Note that the year 1 AD (represented as 1) follows the year 1 BC (represented as ¯1) with no intervening "0" year.

Write code that, given a scalar integer year, returns a character vector (string) of the Chinese zodiac sign for that year. For the purposes of this problem, assume that each year number corresponds to exactly one Chinese zodiac animal.