Challenge #130: Is There an Echo in Here?

[alisonpitt]

I got the one-tool solution!! Whoop whoop!

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[SkomantasTamulaitis]

Not the one tool solution, but here's mine.

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[Nadia_Bonner]

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[grazitti_sapna]

[JamesCharnley]

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I've messed around with the RegEx with this one for a while on a few occasions but it's just beyond me for now. Finally gave in and did it the long way. This is definitely worse because it would lose capitalisation on mid-sentence Proper nouns but it's enough for this case

[vbaumel]

I've been focusing a lot lately on skills in this category, and this was a fun one to come up with a single tool solution!  Here's my solution.

[ahsanaali]

[karlhansen]

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I knew what single tool I could use.  This was more a case of my being able to look up and apply certain rules I needed.

[martinding]

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[chara123]

Here is my solution