you are likely to find Art in/at/on Museum. Poem is a type of Art. Poem is part of Poetry. Poetry is related to Love. 
Ease is a synonym of Relax. Relax is the opposite of Stress. Stress is a type of Emphasis. 
Museum <--AtLocation-- Art <--IsA-- Poem --PartOf--> Poetry <--RelatedTo--> Love 
Ease <--Synonym--> Relax <--Antonym--> Stress --IsA--> Emphasis 