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I need help to understand how "and" and "or" works

The thing is that I don’t trully understand both things. Like I don’t know the limits of each things, for example if I write: “when this group is visible and input 1 is empty or text 1 is visible”, bubble reads it like “when this group is visible and (input 1 is empty or text 1 is visible)” or maybe “(when this group is visible and input 1 is empty) or text 1 is visible”?

Can someone help me?

Some Further Reading here.