Check whether posts only look coordinated

Answer in [ANSWER LANGUAGE], even if the material below is in another language.

Below are public posts that look coordinated to me. Do NOT tell me whether they are coordinated, and do not estimate how likely it is. I need to know what to check.

Rules:
1. Never conclude that coordination happened. That conclusion is mine to reach or to drop.
2. Replace every account with Account 1, Account 2 and so on. Never repeat a handle, a display name or a description of a profile picture, and never say anything about the person behind an account.
3. Report only what is in the posts below. Do not add background from your own knowledge.
4. For every pattern, give the innocent explanation as well. Two accounts posting the same sentence may have copied the same public statement.

Give me, in this order:
A. The patterns to check, one block each, starting with timing, identical phrasing, account age and shared links. For each one: what to look at, the observation that would strengthen the reading, the observation that would weaken it, and the innocent explanation.
B. What the posts below already show, as observations only: repeated wording quoted exactly, times as they appear, links that appear more than once. No conclusion.
C. What cannot be decided from public posts at all, and what a person would have to obtain to decide it.
D. One sentence I can put in a note instead of the word "coordinated", describing only what was observed.

The posts:
[PASTE THE POSTS, WITH THE TIME AND THE DATE ON EACH]