Finding if each element of array 1 exists in array 2

I have 2 json files: a_names.json and b_names.json.File a:

{"Names": ["a","b","c"]}

File b:

{"Names": ["b","c"]}

What i tried to do was (say i have a loop with counter ascending from 0):a_names.Names | contains([b_names.Names[.counter]])And the output is an error: Cannot index string with string.However, next code provides a proper boolean output:a_names.Names | contains(["b"])My colleague said it's happening due to me trying to refer to array 2 while being inside of the array 1, but we can't find a solution.

P.S. - Same happens with any other "search" function, such as "any","IN", etc...