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.

The metre per second ( American English : meter per second ) is an SI derived unit of both speed ( scalar ) and velocity ( vector quantity which specifies both magnitude and a specific direction ) , defined by distance in metres divided by time in seconds .
Metre per second is an SI unit of measurement of both speed and velocity .

Erectile dysfunction ( also known as ED or " ( male ) impotence " ) is a sexual dysfunction characterized by the inability to develop and / or maintain an erection .
Erectile dysfunction is also known as ED , impotence or male impotence .

The Pakistan Peoples Party Parliamentarians ( PPPP ) is a Pakistani political party and an electoral extension of the Pakistan People 's Party ( PPP ) .

The party is an electoral extension of the Pakistan Peoples Party .

