# In this example, we have 3 people: Alice, Bob and Charly
---
# Alice paid a pizza for Bob (and for herself)
- who: Alice
  price: 35
  what: pizza
  for:
      - Alice
      - Bob
# Alice paid a restaurant to eveybody, no need to add all names
- who: Alice 
  price: 100
  what: sunday's restaurant
# Charly paid some books for Bob
- who: Charly
  price: 53
  what: books
  for: [Bob]
# Bob paid ice creams to Charly and Alice
- who: Bob
  price: 35
  what: ice creams
  for: [Alice, Charly]