ReferenceError: list is not defined Potsman error

Question

I am executing below script in Postman and getting error "ReferenceError: list is not defined "

response = pm.response.json(responseBody)
console.log(response)
token = response.provider-list[6].user-list[1].activation-token
console.log(token)

I am trying to extract a vaule from JSON response body and my JSON path is $.provider-list[6].user-list[1].activation-token