General question, Supported with or Supported by

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This question has not reference to any material.
Is it supported with or supported by?
Example: this assumption is never supported with/by any data

Thanks!
Isis Alaska

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isisalaska wrote:This question has not reference to any material.
Is it supported with or supported by?
Example: this assumption is never supported with/by any data

Thanks!
'supported by' is more idiomatic