Please capitalize where necessary: old american bingo cards in thick cardboard. by sliding to the side, the numbers are hidden.
A: Old American bingo cards in thick cardboard. By sliding to the side, the numbers are hidden.

Q: 02. hi power air blower is an optional item.

A: 02. Hi power air blower is an optional item.

Q: there are both both a legacy lever and the button on some modern machines.
A: There are both both a legacy lever and the button on some modern machines.

Problem: benefits: sensitive operation of the 3rd control circuit and the telescopic function.
Can you repeat this sentence, but capitalize it?
Answer: Benefits: Sensitive operation of the 3rd control circuit and the telescopic function.

Text: one such survey appeared as a two-part paper a glance at graph theory published in the bulletin of the london mathematical society.

Correct capitalization: One such survey appeared as a two-part paper A glance at graph theory published in the Bulletin of the London Mathematical Society.

Text: the featured china guangdong daylight white 20 watt manufacturers and listed here are sourced by the karnar lighting.

Correct capitalization:
The featured China GuangDong Daylight White 20 watt manufacturers and listed here are sourced by the karnar lighting.