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.

[Q]: Pelagia noctiluca is a jellyfish in the family Pelagiidae and the only currently recognized species in its genus .
[A]: Pelagia noctiluca is a jellyfish .


[Q]: 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 .
[A]: In January 1905 , Alexander Adrianov became Moscow ’ s first mayor .


[Q]: The London , Brighton and South Coast Railway ( LB & SCR ; known also as " the Brighton line " , " the Brighton Railway " or " the Brighton " ) was a railway company in the United Kingdom from 1846 to 1922 .
[A]:
The London , Brighton and South Coast Railway ( LBSCR was a railway company in England from 1846 to 1922 .