Regex Look ahead and look behind?

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VB

I was pretty sure I had all I needed to acomplish what I was trying to do untill I ran into a nasty bit of HTML that posed a challenge when trying to pick through it.

I need to display the name that follows a students name.....

Example- Student name: Sara,John,Mark

Now I only need to display one of thoes names but it would be nice to know how to match a string that comes after the match string I am using to get close to the next following word which is the word I wish to display alone.

I heard this is called a "look ahead" or "look behind" in regex...
is a look ahead to the right and look behind to the left?

if so I am looking to display the string to the right only if possible.


thank you in advance!
:)