the boats were overlapped when the first boat reached the zone.

How would the previous sentence be correctly capitalized?
Answer: The boats were overlapped when the first boat reached the zone.
it is very central and in the heart of the historical part of the city.

How would the previous sentence be correctly capitalized?
Answer: It is very central and in the heart of the historical part of the city.
i’ve made a 5 min movie clip with photos and footage (and sound) from the roads of adventure…

How would the previous sentence be correctly capitalized?
Answer: I’ve made a 5 min movie clip with photos and footage (and sound) from the roads of adventure…
loss of exercise stamina

How would the previous sentence be correctly capitalized?
Answer: Loss of exercise stamina