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If I say I have "fifteen years experience", should it be "fifteen years' experience" or NO apostrophe?
Comments  
With the apostrophe.
Thank you.

What would you say about these cases? Would you place apostrophes for the underlined parts?

The road is known as Seoul lovers lane.

Katie Holmes photo op
Students: We have free audio pronunciation exercises.
<The road is known as Seoul lovers lane.

Katie Holmes photo op >

I'd say so,