Dash, comma

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Hi,   I am straggling with punctuation for 2 sentences: 1. "X companies participated in the event, out of which - Y environmental organizations". I need to emphasize that Y out of X were environmental organizations, but not sure for the dash after "out of which". 2. We are using Z - a best-in-class data analysis tool. Not sure if I need to have a dash after Z or a comma. Thank you much for your help,  Astra

dashes comma asked Nov 06 '12 at 18:59 Astra New member

2 answers


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An em-dash (so-called because it is as wide as a capital M) is used as an emphatic substitute for a comma. On a typewriter and on this forum, two hyphens are used to simulate the em-dash.

 

An em-dash is never required, but is a stylistic choice. It should not be overused.

 

I agree with Lewis concerning the placement of the commas. In the second sentence, an em-dash might be considered "overkill".

link answered Nov 06 '12 at 19:35 Jeff Pribyl Grammarly Fellow

Commas on steroids!
or
COMMAS ON STEROIDS!!!!!!!!!!!!!!!!!!!!!!!!

Which is correct?

Lewis NeidhardtNov 06 '12 at 19:44

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Because it's not needed, remove the dash and add 'were'.

 

X companies participated in the event, out of which Y were environmental organizations.

 

A comma is just right for this sentence.

We are using Z, a best-in-class data analysis tool.

link comment answered Nov 06 '12 at 19:11 Lewis Neidhardt Grammarly Fellow

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