### Template:
{
    "longest_observation_scalar": "",
    "longest_observation_unit": "",
}
### Examples:


### Text:

{ "longest_observation_scalar": 3, "longest_observation_unit": "weeks" }
{ "longest_observation_scalar": 4,   "longest_observation_unit": "months"}
{ "longest_observation_scalar": 14,   "longest_observation_unit": "months"}
{ "longest_observation_scalar": 48,   "longest_observation_unit": "weeks"}
{ "longest_observation_scalar": 14,   "longest_observation_unit": "months"}
{ "longest_observation_scalar": null, "longest_observation_unit": null }
{ "longest_observation_scalar": null, "longest_observation_unit": null }

"""
