instruction: provide the number of patients whose marital status is divorced and diagnoses long title is tricuspid valve disorders, specified as nonrheumatic?
response: SELECT COUNT(DISTINCT demographic.subject_id) FROM demographic INNER JOIN diagnoses ON demographic.hadm_id = diagnoses.hadm_id WHERE demographic.marital_status = "DIVORCED" AND diagnoses.long_title = "Tricuspid valve disorders, specified as nonrheumatic"