instruction:
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.
question:
In January 1905 , the institution of the City Governor , or Mayor , was officially introduced in Moscow , and Alexander Adrianov became Moscow 's first official mayor .
answer:
In January 1905 , Alexander Adrianov became Moscow ' s first mayor .

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

question:
A police dog , known in some English-speaking countries as a " K-9 " or " K9 " ( a homophone of " canine " ) , is a dog that is specifically trained to assist police and other law-enforcement personnel .
answer:
A police dog ( also called a K-9 ) is a dog trained to help police and other law enforcement people .