QUES: Hotel ibis Amsterdam Centre Stopera is a 10 to 15minute walk from Dam Square Rembrandt Square and the station

correct the punctuation.

CORRECTED: Hotel ibis Amsterdam Centre Stopera is a 10 to 15-minute walk from Dam Square, Rembrandt Square and the station.

QUES: This trend with time can be demonstrated by comparing todays usual specifications with those given in the last book on Tungsten by Yih and Wang published in 1979

correct the punctuation.

CORRECTED: This trend with time can be demonstrated by comparing today's usual specifications with those given in the last book on "Tungsten" by Yih and Wang, published in 1979.

QUES: Lighting Lighting in rooms

correct the punctuation.

CORRECTED:
Lighting + , Lighting in rooms