use headers to hide duplicate text???

Here is an example of what I do

1. PR article

<h1>When placing stories in the media, you want to highlight your product or
service</h1>
<h2>but you also have other equally important objectives. </h2>
<h3>You want to educate, to enlighten and you want to entertain. I don't think
that I can emphasize those points strongly enough. Many think of public
relations as fluff and hype and whereas all of that exists, the glitter and
flash isn't what makes for an effective campaign. What makes PR and media
relations effective is that it tells a story, educates, entertains, enlightens
and it gives the public information on a particular topic or field that they
otherwise wouldn't have access to. Let's look at a couple of examples.</h3>
<h4>A physician who was working on a new cancer drug was in the middle of
clinical tests. The first series had been quite promising. He was looking for
patients with a certain type of cancer who were interested in participating in
the study. He received hundreds of calls after a local TV interview ran, from
people wanting to find out more information. </h4>
<h5>These people would have never been aware of the study and their opportunity
to participate in it, if it had not been for the media coverage generated via a
public relations campaign. That is a campaign that not only informs, but can
actually save lives.</h5>


2. PR article

<h1>When placing stories in the media</h1>
<h2>you want to highlight your product or service, but you also have other
equally important objectives. </h2>
<h3>You want to educate, to enlighten and you want to entertain. I don't think
that I can emphasize those points strongly enough. Many think of public
relations as fluff and hype and whereas all of that exists, the glitter and
flash isn't what makes for an effective campaign. </h3>
<h4>What makes PR and media relations effective is that it tells a story,
educates, entertains, enlightens and it gives the public information on a
particular topic or field that they otherwise wouldn't have access to. Let's
look at a couple of examples.<br>
<br>
A physician who was working on a new cancer drug was in the middle of clinical
tests. </h4>
<h5>The first series had been quite promising. He was looking for patients with
a certain type of cancer who were interested in participating in the study. </h5>
<h6>He received hundreds of calls after a local TV interview ran, from people
wanting to find out more information. These people would have never been aware
of the study and their opportunity to participate in it, if it had not been for
the media coverage generated via a public relations campaign. That is a campaign
that not only informs, but can actually save lives.</h6>

a) headers are divided in different ways
b)g uugle can understand these two items as unique?
c) guugle only reads plain text?
d) I can use headers to confuse guugle?


I hope you can help me with these doubts

Thanks to all who respond: P