two leading practitioners of american citizen engagement have published a recommendable textbook on the art of engagement.

How would the previous sentence be correctly capitalized?
Answer: Two leading practitioners of American citizen engagement have published a recommendable textbook on the art of engagement.
easy to carry thanks to ergonomic, wave-shaped seat edge for gripping which also prevents the stool from rolling off.

How would the previous sentence be correctly capitalized?
Answer: Easy to carry thanks to ergonomic, wave-shaped seat edge for gripping which also prevents the stool from rolling off.
the outdoor unit is installed outside the house, and pumps out the warm air. split acs are quieter and have better air distribution than other models.

How would the previous sentence be correctly capitalized?
Answer: The outdoor unit is installed outside the house, and pumps out the warm air. Split ACs are quieter and have better air distribution than other models.
score from 130 reviews 6.8

How would the previous sentence be correctly capitalized?
Answer: Score from 130 reviews 6.8