Extract word or character after matched string excluding whiteSpace and matched string using regex

Question

"1 cup of Greek or natural yoghurt."

I want cup to be filtered out.

"1gm of salt."

Here i want gm to be extracted.

I want a regex expression which is the combination of both.

Any help would be appriciated.

Answer 1

/^(.+?)( cup|gm)(.+?)$/i

replace to

\1 \3

regex101