Finding how many reviews contain a keyword. Stuck because I cant get reviews

[Moises Trejo]

I want to see how many reviews contain the keyword "seaweed" for places like Punta Cana.

I can get a response from

http://api.tripadvisor.com/api/partner/2.0/location/147293

But when I try

http://api.tripadvisor.com/api/partner/2.0/location/147293/reviews

I get this response:

{
  "error": {
    "code": "120",
    "type": "BadRequestException",
    "message": "Cannot view this connection at this level."
  }
}

Does anyone know what I can do in this case?

Thank you for taking the time to read this!

Moises