In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

Ex Input:
In humans , the pigmentation of the iris varies from light brown to black , depending on the concentration of melanin in the iris pigment epithelium ( located on the back of the iris ) , the melanin content within the iris stroma ( located at the front of the iris ) , and the cellular density of the stroma .

Ex Output:
In humans , the pigment of the iris varies from light brown to black .

Ex Input:
A plaintiff ( in legal shorthand ) is the party who initiates a lawsuit ( also known as an " action " ) before a court .

Ex Output:
A plaintiff is a person who starts a lawsuit in court .

Ex Input:
The 2016 United States presidential election in Maine was held on November 8 , 2016 , as part of the 2016 United States presidential election in which all 50 states plus the District of Columbia participated .

Ex Output:
The 2016 United States presidential election in Maine was held on 8 November 2016 .