Please capitalize where necessary: 18th eu-russia summit is held in helsinki.
A: 18th EU-Russia summit is held in Helsinki.

Q: detention takes place in prisons on israeli territory, which the lawyers concerned are forbidden to enter.

A: Detention takes place in prisons on Israeli territory, which the lawyers concerned are forbidden to enter.

Q: sometimes laboratory analysis can identify the type of fungus that caused dermatofita pace.
A: Sometimes laboratory analysis can identify the type of fungus that caused dermatofita pace.

Problem: help nelly find and save her brother from a mysterious romanian castle and discover the secrets of the philosophers stone!
Can you repeat this sentence, but capitalize it?
Answer: Help Nelly find and save her brother from a mysterious Romanian castle and discover the secrets of the Philosophers Stone!

Text: for many years philosophers have described what it means to be human in fact, what it means to exist at all by speaking of our dealings with some absolutely fundamental dimensions: space, time, actions and relations.

Correct capitalization: For many years philosophers have described what it means to be human in fact, what it means to exist at all by speaking of our dealings with some absolutely fundamental dimensions: space, time, actions and relations.

Problem: price based on booking for 11 people in low season
Can you repeat this sentence, but capitalize it?
Answer:
Price based on booking for 11 people in low season