Sign is related to Name. Name is a synonym of Diagnose. Doctor can be used for Diagnose. Doctor is related to Appointment. 
Screen is a type of Show. Screen is related to Pass. 
Sign <--RelatedTo--> Name <--Synonym--> Diagnose <--UsedFor-- Doctor <--RelatedTo--> Appointment 
Show <--IsA-- Screen <--RelatedTo--> Pass 