E, A, O
vowels
Mars, Saturn, Earth
planets
train, yacht, helicopter
vehicles
wrench, hammer, saw
tools
bear, human, wolf
mammals
October, July, May
months
hearing, seeing, smelling
senses
lizard, snake, turtle
reptiles
Washington, California, Colorado
states
math, science, art
school subjects
oregano, rosemary, sage
spices
France, Mexico, Canada
countries
English, French, Japanese
languages
inch, centimeter, yard
measurements
rainy, snowy, sunny
weather
cotton, rayon, polyester
fabric
gosling, calf, fawn
baby animals