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How to connect a word and a phrase with a dash?
Hello, I'm a non-native English speaker and I'm writing a scientific paper about biometric identification based on heart sounds.
In this context, is the following phrase correct?
Comparison of recent articles on heart sounds-based biometrics.
I am using it as a caption for a table.
The correct form would require another hyphen:
Comparison of recent articles on heart-sound(s)-based biometrics
However, such long compound adjectives are a bit ugly. Instead you could write this:
Comparison of recent articles about biometrics based on heart sounds.
Or perhaps this:
Comparison of recent articles on heart-sound biometrics
It seems clear that these biometrics are based on whatever word you use to specify them, which is why I suspect the word "based" isn't really necessary; or is it?
