Add punctuation: On the second floor is a guest kitchen with electric boiler Coffee machine hot plate and a fridge for free use
A: -On the second floor is a guest kitchen with electric boiler, Coffee machine, hot plate and a fridge for free use.

Add punctuation: EU Death grants entitlement if living in another EU country Your Europe
A: EU - Death grants: entitlement if living in another EU country -Your Europe

Add punctuation: He says in his book that organic compounds were not sufficiently researched for exact description That is why he wanted to delay his report on the nature of organic compounds to the next edition of his textbook
A:
He says in his book that organic compounds were not sufficiently researched for exact description. That is why he wanted to delay his report on the nature of organic compounds to the next edition of his textbook.