Sound is related to Signal. Signal is a synonym of Sign. Sign is related to Instructional. 
Learning can cause/lead to Good. Good is a synonym of Just. Just is a synonym of Beautiful. Beautiful is similar to Lovely. 
Sound <--RelatedTo--> Signal <--Synonym--> Sign <--RelatedTo--> Instructional 
Learning --Causes--> Good <--Synonym--> Just <--Synonym--> Beautiful <--SimilarTo--> Lovely 