uri_schema.bnf

uri             = "threepio+", application, "://", path, "?", params;
application     = "prelude" | "premiere";

path            = "/", alphanumeric, {path};

params          = param, {"&", params};

param           = key, "=", value;
key             = "accessKey" | "secretKey" | "sessionToken" | "uuid";
value           = alphanumeric;


alphanumeric    = letter | digit, {alphanumeric | punctuation};