I added a few details to my previous summary. I need you to check it.

1) During his journey, he is shipwrecked on a desert island off the coast of South America, near the mouth of the Orinoco River, where he remains for 28 years.
2) To get himself food he learns how to cultivate the land and go hunting.
Some other things he saved from the ship are fundamental to Robinson: paper, pen and ink, with which he keeps a diary of his life on the island; and a Bible, which he reads every day. (I'd like to rephrase this sentence, which I find too long-winded, could you help me?)
3) During a trip of exploration on the side of the island opposite to the one on which he lives (I need to simplify it), Robinson comes across a group of Indian cannibals who are going to kill another Indian. Using his gun, Robinson frightens them away and rescues the prisoner (the cannibals’ captive).
4) He decides to call him Friday because it was on a Friday that he saved his life.
The two live together on the island, Robinson as the master and Friday as his servant.
5) He manages to teach Friday (to speak) English. He also teaches him that eating (to eat is a mistake?) people is wrong and Friday promises (him) that he will never do it again. Like the other cannibals, Friday doesn’t wear any clothes. So Robinson gives him something to wear.
6) He believes Friday is intelligent and hard-working. Robinson thinks Friday
One day an English ship taken over (synonym?) by a group of mutineers anchors by the island.

1) OK

2) To feed himself, he learns how to cultivate the land and hunt.

Some other things he saved from the ship are paper, pen and ink (which he uses to keep a diary on the island) and a Bible, which he reads every day.

3) During an exploratory trip on the other side of the island, Robinson comes across a group of Indian cannibals who are going to kill another Indian. Using his gun, Robinson frightens them away and rescues the the cannibals’ captive.

4) He decides to call him Friday because he saved his life on a Friday. The two live together on the island, Robinson as the master and Friday as his servant.

5) He manages to teach Friday to speak English. He also teaches him that eating people is wrong, and Friday promises that he will never do it again. Like the other cannibals, Friday doesn’t wear any clothes, so Robinson gives him something to wear.

6) Robinson thinks Friday is intelligent and hard-working.

One day an English ship commandeered by a group of mutineers anchors near the island.

1) It is important to double-check the accuracy and completeness of your summary, but unfortunately, as an AI bot, I am unable to physically review any written text. However, if you would like assistance in improving the clarity or coherence of your summary, I would be glad to help.

2) In order to sustain himself, the main character learns how to farm and hunt for food while he is stranded on the desert island.

3) While exploring the opposite side of the island where he lives, Robinson encounters a group of cannibals who are about to kill another captive. Using his gun, Robinson scares off the cannibals and rescues the prisoner.

4) The rescued captive is given the name "Friday" because Robinson saved his life on a Friday. Robinson and Friday begin to live together on the island, with Robinson as the master and Friday as his servant.

5) Robinson teaches Friday to speak English and advises him that consuming human flesh is morally wrong. Friday promises never to do it again. Since Friday, like the other cannibals, does not wear clothing, Robinson provides him with something to wear.

6) Robinson believes that Friday is intelligent and hardworking. One day, an English ship, which has been taken over by mutineers, anchors near the island.