How to get only 2nd part of as string in Computed columns?

[sandeepr43]

Hi,

I'm using Enhanced table in Kibana 8.6.2 version.

One of my field string values consists of 3 or 4 words seperated by "-" .
So basically a part of string.
I'm trying to get 2nd part of string ie. the value after 1st "-" as shown below:

When I try to use
indexOf(strOrArray, searchValue[, fromIndex]) I get error.

i Used indexOf(col0, searchValue[, fromIndex])

What should be my approach in this?

Thanks in Advance.