Patients use a self-serve kiosk to confirm their arrival at an outpatient clinic. They then proceed to the receptionist to update any personal information. After that, a nurse will record the patient's vital signs. A physician will then consult with the patient and prescribe appropriate treatments. The patient will then visit the checkout station to settle payment and schedule the next appointment, if needed. Processing times and other information on the process are presented in the table below:

Resource Process Processing time (minutes per patient) Number of workers Wage rate ($per hour)
Self-service Check in 1 n/a n/a
Receptionist Update information 5 2 15
Nurse Record vital signs 10 3 30
Physician Treat patient 30 5 100
Checkout Collect payment 10 2 15

Required:
What is the labor content?