Swine Pigs 30 Olivia (Fictitious character : Falconer) 8 Friendship 4 Handling 4 Manure 4 Rain and rainfall 4 Readers 4 Schools 4 (Fictitious character) 2 Animal waste 2 Animals 2 Bands (Music) 2 Birds 2 Brothers and sisters 2 Chocolate 2 Cleanliness 2 Cooperativeness 2 Domestic animals 2 Elephants 2 English language 2 Families 2 Family life 2 Fathers and daughters 2 Fireworks 2 Gerald (Fictitious character : Willems) 2 Greed 2 Housing 2 Humorous stories 2 Imitation 2