Hello,

refer this link for conversion pictures

https://www.google.co.in/search?q=phenol+to+m+nitrobenzene&sa=X&hl=en&biw=1920&bih=925&tbm=isch&tbo=u&source=univ&ved=0ahUKEwiS6vmOtYXcAhWDNo8KHcwkAE8QsAQIOg

,hope u will surely be beneficial  of this answer.

keep up hope.

all the best.

best regards for your future and  seccessful career.