Poll is a type of Inquiry. Experiment is a type of Inquiry. Experiment is related to Process. Process is related to Fire. 
Marry is related to Ring. Ring is related to Push. Push is related to Like. 
Poll --IsA--> Inquiry <--IsA-- Experiment <--RelatedTo--> Process <--RelatedTo--> Fire 
Marry <--RelatedTo--> Ring <--RelatedTo--> Push <--RelatedTo--> Like 