Combining selector sequences into @extend in SASS

If we need to combine selector sequences, we also use the @extend directive:

Let's consider the following example:

#main .list p {
	font-weight: bold;
}
#sub .resume .link {
	@extend p;
}

Note in the compiled code in the css file that when combining two sequences that do not have common selectors, new selectors are automatically generated: one with the first sequence before the second, and one with the second sequence before the first:

#main .list p,
#main .list #sub .resume .link, #sub .resume #main .list .link {
	font-weight: bold;
}

In case the sequences have a common selector, they will be merged together and only the differences (if any) will be alternated. In the following example, both sequences have the identifier #main:

#main .list p {
	font-weight: semi-bold;
}
#main .resume .link {
	@extend p;
}

As a result of compilation, these two identifiers will be combined:

#main .list p,
#main .list #sub .resume .link, #sub .resume #main .list .link {
	font-weight: bold;
}

Tell me what the result of compiling the following code will be:

div p {
	font-size: 12px;
	padding-bottom: 4px;
}
link button #card-title {
	@extend p;
}