sentence correctness

Remember we leave spaces after punctuation marks.

I prefer "who is responsible for" but it's not strictly necessary.

Thank you, Barbara.

I have a question.
Could you tell me what kind of a phrase it is?

Either way, it describes the person... so a phrase that describes a noun is a ...?

BarbaraPAso a phrase that describes a noun is a ...?

adjective phrase

Thank you.

I was doing some research on this yesterday and found this in this source.

When the operative verb in the adjective clause is in the active form, drop the relative pronoun and convert the operative verb to its progressive form. For example, the ad

No.
The difference is that "women who work as full-time professionals" is a restrictive description. What subset of women in general? The ones who work as full-time professionals.

On the other hand, "Mr. Brown, who is responsible for public relations," is additional information about Mr. Brown.

It's not "The Mr. Brown responsible for public relations is an employee, and the M

BarbaraPAThe difference is that "women who work as full-time professionals" is a restrictive description. What subset of women in general? The ones who work as full-time professionals.

BarbaraPAThere is also no rule that says that people who are responsible for public relations must be employees,

I understand.
Thank you