The English language...most languages for that matter, can be notoriously imprecise. For example, even the most carefully planned phrases can reveal unintended consequences. For example, the phrase:
"I wish all the girls at my high school switched families every day for the next seven days, and that I would have a new sister and girlfriend for each of those seven days."
Could be interpreted in many ways. And since the wish took effect seven times, each time it could or could not interpret things differently. For example...
The girls at my high school switched families One might assume this means the girls would join different families, and those families would remain the same. One could also theorize that the families themselves would change and the girls would remain exactly as they were.
At my high school Miriam-Webster's says that when used to indicate a point or place occupied in space, at can mean in, on, or near. Thus it could mean girls only physically within the school building, on top of it, or near it. and Jon's sister and girlfriend, as they were named separately. At can also be used to indicate occupation or involvement...thus all girls who attend or work at the school.
Girls. Girls itself can include all females, or only those in a certain age group. Some girls in high school would insist they are women.
So, what did happen? And what will happen...? Well...