Message suppression - what am I doing wrong?

[Blasphemous]

Hey guys.
I'm dabbling in chaos alchemy but wanted to streamline the process a bit and suppress/replace the related messages.
For example, I have these two messages which occasionally extend beyond the standard two lines and the (more) prompt is then used:

You dip the uncursed potion of raw chaos into the uncursed potion of raw chaos.
The uncursed potion of raw chaos is transformed into a potion of foo!

What I did in adom.msg is the following (just an excerpt relevant to the topic):

:replace
#brown
:brown
.*potion of raw chaos into.*|PoRC dip.
.*potion of raw chaos is transformed into.*|PoRC polymorph.

Result?

You dip the uncursed potion of raw chaos into the uncursed potion of raw chaos.
PoRC polymorph.

Why does it only work for the second line?

[Grond]

The first message is composed of two different strings: [You dip the uncursed potion of raw chaos] [into the uncursed potion of raw chaos.]
You need something like:

You dip the.*potion of raw chaos|Dip PoRC
into the.*potion of raw chaos|into PoRC.

[SirTheta]

For the benefit of others browsing this thread, some of the posts in this thread have further examples of this structure: [1], [2]

[Blasphemous]

The first message is composed of two different strings: [You dip the uncursed potion of raw chaos] [into the uncursed potion of raw chaos.]
You need something like:

You dip the.*potion of raw chaos|Dip PoRC
into the.*potion of raw chaos|into PoRC.

Thanks Grond, this worked.
Now I can handle some of the other similarly complex messages.