the last thing you do when you Program is Test. Test is related to Experimental. 
Seminar is related to Class. Class is related to Period. Period is related to Century. Century is related to Age. 
Program --HasLastSubevent--> Test <--RelatedTo--> Experimental 
Seminar <--RelatedTo--> Class <--RelatedTo--> Period <--RelatedTo--> Century <--RelatedTo--> Age 