input: Headphones with noise cancellation Portable DVDCD players
fixed: Headphones with noise cancellation Portable DVD/CD players
input ---- Banquet Long tables 150 guests
output ---- Banquet Long tables: 150 guests.
Add punctuation: Weapons Big set of modern firearms worldwide changes tactics only weapons first class nothing to do with mass production
A: Weapons: Big set of modern firearms worldwide, changes tactics. only weapons first class, nothing to do with mass production.
QUESTION: Fix punctuation: Students rated schools in Buenos Aires overall 40 50 93 reviews
ANS: Students rated schools in Buenos Aires overall: 4.0 / 5.0 ( 93 reviews)
QUES: Back to school is a special Spring Day activity where local regional national and European public figures join our campaign and visit schools Back to school is an opportunity for both students and guests to discuss European themes and get visibility and recognition of their contributions to the European Year of Creativity and Innovation

correct the punctuation.

CORRECTED: Back to school is a special Spring Day activity where local, regional, national and European public figures join our campaign and visit schools. "Back to school" is an opportunity for both students and guests to discuss European themes and get visibility and recognition of their contributions to the European Year of Creativity and Innovation.
QUES: Hi my name is XXXMargo and I am 19 years

correct the punctuation.

CORRECTED:
Hi, my name is XXXMargo and I am 19 years.