Please capitalize where necessary: high quality single strand 8-9mm natural purple freshwater pearl necklace with 925 sterling silver chains (no box)
A: High Quality Single Strand 8-9mm Natural Purple Freshwater Pearl Necklace With 925 Sterling Silver Chains (No Box)

Q: after washing of the impurities from the oil tank paint surfaces, the inspection has produced a gratifying result: the coating has endured superbly.

A: After washing of the impurities from the oil tank paint surfaces, the inspection has produced a gratifying result: the coating has endured superbly.

Q: unsure about which type of zyx file you have? do you want to know exactly what it is, who created it, and how to open it?
A: Unsure about which type of ZYX file you have? Do you want to know exactly what it is, who created it, and how to open it?

Problem: determining factors for quickness are the reaction speed, quickness (accelerating power) and quickness endurance.
Can you repeat this sentence, but capitalize it?
Answer: Determining factors for quickness are the reaction speed, quickness (accelerating power) and quickness endurance.

Text: keeps you rock hard, even after multiple ejaculations!

Correct capitalization: Keeps you rock hard, even after multiple ejaculations!

Text: apartments volaric, crikvenica - location & driving directions

Correct capitalization:
Apartments Volaric, Crikvenica - Location & Driving directions