Tourist is related to Hotel. Hotel is related to Building. Building is related to Timber. 
Involve is a synonym of Overwhelm. Overwhelm is a synonym of Overcome. Overcome is related to Heal. 
Tourist <--RelatedTo--> Hotel <--RelatedTo--> Building <--RelatedTo--> Timber 
Involve <--Synonym--> Overwhelm <--Synonym--> Overcome <--RelatedTo--> Heal 