Please capitalize where necessary: it may take several days before the laughter becomes natural, because we are not accustomed to laugh just not accustomed to the naturalness of laughter.
A: It may take several days before the laughter becomes natural, because we are not accustomed to laugh just not accustomed to the naturalness of laughter.

Q: the quantitative engineering understanding, however, is still scarce and therefore design is done on an empirically uncertain basis.

A: The quantitative engineering understanding, however, is still scarce and therefore design is done on an empirically uncertain basis.

Q: check rates and availability for backpackers bcn casanova. then proceed to booking.
A: Check rates and availability for Backpackers BCN Casanova. Then proceed to booking.

Problem: 02-04-2015 - volvo ocean race: life at the extreme (11)
Can you repeat this sentence, but capitalize it?
Answer: 02-04-2015 - Volvo Ocean Race: Life at the Extreme (11)

Text: during the assessment a high degree of caution is observed. this means that any doubt is sufficient to warrant rejection.the swedish asthma and allergy association is a dedicated network that provides information about the prevention of diseases like asthma and allergies.

Correct capitalization: During the assessment a high degree of caution is observed. This means that any doubt is sufficient to warrant rejection.The Swedish Asthma and Allergy Association is a dedicated network that provides information about the prevention of diseases like asthma and allergies.

Problem: transfer from schwedt to berlin schoenefeld (sxf) airport
Can you repeat this sentence, but capitalize it?
Answer:
Transfer from Schwedt to Berlin Schoenefeld (SXF) airport