Chronic is a synonym of Continuing. Continuing is similar to Long. Long is related to Stem. Stem is part of Apple. 
Lecture is a synonym of Talk. Talk is related to Noise. 
Chronic <--Synonym--> Continuing <--SimilarTo--> Long <--RelatedTo--> Stem --PartOf--> Apple 
Lecture <--Synonym--> Talk <--RelatedTo--> Noise 