. Harold and Tanya both have a wide range of schizophrenic symptoms. Harold’s symptoms have lasted for eight months; Tanya's lasted for five weeks before she recovered. According to the DSM-5, their diagnoses should be

Undifferentiated schizophrenia for Harold; schizophreniform disorder for Tanya.

Explanation:

Schizophreniform disorder is a mental disorder diagnosed when symptoms of schizophrenia are present for a significant portion of the time at least a month, but signs of disturbance are not present for the full six months required for the diagnosis of schizophrenia. In schizophreniform disorder, the symptoms (including prodromal, active, and residual phases) must last at least 1 month but not more than 6 months.

While Undifferentiated-type schizophrenia is a classification used when a person exhibits behaviors which fit into two or more of the other types of schizophrenia, including symptoms such as delusions, hallucinations, disorganized speech or behavior, catatonic behavior.

the first part is ocean

explanation:

the branch of biology that deals with the normal functions of living organisms and their parts.

the way in which a living organism or bodily part functions.