What is the purpose of the following passage?

"GNN has reported on similar studies before—in 2019, when a study from the University of Illinois found that Medicare costs tend to be lower in counties with more forests and shrub-lands than in counties dominated by other types of land cover."

What is the text structure for the following passage?

"Obama's father left the family when Obama was two and, after further studies at Harvard University, returned to Kenya, where he died in an automobile accident nineteen years later. "

What is the writer's purpose?

"We're all stars to disappear or die, 

I should learn to look at an empty sky

And feel its total dark sublime, 

Though this might take me a little time."

What is the text structure of the following passage?

"This is the biggest wild card. While both games allow multiplayer action, Minecraft lends itself more to solo play, while Roblox is social from the minute you sign on -- and friending and chatting are a huge part of the game"

What is the text structure for the following passage?

"Active students are better learners Recess increases students’ physical activity and improves educational outcomes"

What's the purpose of the following passage?

"Much of the research on spicy foods focuses on capsaicin, the compound that gives chile peppers their kick. Some of that research has found that capsaicin boosts the body’s ability to break down fat and burn more energy"

How do I remember what are the three Writer's Purposes?