A phrase i don't understand in the curriculum's OOP challenges section

I think this may not need a link to the challenge, here you go:
The paragraph from the challenge says:
When an object inherits its prototype from another object, it also inherits the supertype’s constructor property.

So far in the challenges i have never heard of an object inherits its prototype from another object, do they mean that a prototype is an object? Because heard about that in previous challenges, that how a prototype itself is object.
If my understanding is right, when they say one object inherits from another object, they mean an inheritance of a child’s prototype(an object) from a parent’prototype.
That’s all i know so far, please clarify if possible.
Thank you