Point is part of Pencil. Point is related to Particle. Particle is related to Cell. Cell is related to Candy. 
Park can be Dark. you are likely to find Cat in/at/on Park. 
Pencil <--PartOf-- Point <--RelatedTo--> Particle <--RelatedTo--> Cell <--RelatedTo--> Candy 
Dark <--HasProperty-- Park <--AtLocation-- Cat 