Please capitalize where necessary: natural technique for reinforcing the "hormone twins" (vitamin d and melatonin) for a better night's sleep, article #3, p. 41-44; july 2008 newsletter, p. 8-10
A: Natural technique for reinforcing the "hormone twins" (Vitamin D and melatonin) for a better night's sleep, Article #3, p. 41-44; July 2008 Newsletter, p. 8-10

Q: characteristic of all 7 aluboot-brand models pontom ®️ defender is the wide bow and a generally wide construction.

A: Characteristic of all 7 Aluboot-brand models PonTOM ®️ Defender is the wide bow and a generally wide construction.

Q: doctors suggest that you avoid the use of bottles and pacifiers for at least the first six weeks.
A: Doctors suggest that you avoid the use of bottles and pacifiers for at least the first six weeks.

Problem: printed by jacobinus suigus and nicolaus de benedictis. there's a larger version here: suigus 02.
Can you repeat this sentence, but capitalize it?
Answer: Printed by Jacobinus Suigus and Nicolaus de Benedictis. There's a larger version here: Suigus 02.

Text: room service is available 24 hours a day offering a la carte dishes and snacks.

Correct capitalization: Room service is available 24 hours a day offering a la carte dishes and snacks.

Text: the percapita output of grains, as stated previously, was not any higher in 1977 than it was in 1955.

Correct capitalization:
The percapita output of grains, as stated previously, was not any higher in 1977 than it was in 1955.