Integrate is a synonym of Incorporate. Incorporate is a synonym of Comprise. Comprise is a synonym of Consist. Consist is a synonym of Formation. 
Feeling is related to Smile. one thing you do when you Laugh is Smile. Laugh is related to Hearing. 
Integrate <--Synonym--> Incorporate <--Synonym--> Comprise <--Synonym--> Consist <--Synonym--> Formation 
Feeling <--RelatedTo--> Smile <--HasSubevent-- Laugh <--RelatedTo--> Hearing 