1. people
1.1. dancing
1.1.1. working out
1.2. money
1.3. running
1.4. walking
1.5. jumping
1.6. sports
1.6.1. balls
1.7. men and woman
1.7.1. babies
1.8. jobs
1.8.1. driver
1.8.2. painter
1.8.3. writer
1.8.4. doctor
1.8.5. traveling
1.9. Art
1.9.1. playdoh
1.9.2. painting
2. animals
2.1. pets
2.1.1. dog
2.1.1.1. playing fetch
2.1.2. hamster
2.1.3. cat
2.1.3.1. laser pointer
2.2. zoo
2.2.1. habatats
2.2.2. lion
2.3. farms
2.3.1. cows
2.3.1.1. sounds
2.3.2. horses
3. the world
3.1. spinging
3.2. space
3.2.1. meteors
3.2.2. stars
3.3. air
3.3.1. breathing
3.4. planets
3.4.1. earth
3.4.2. saturn
3.4.3. moon
4. water
4.1. waterfalls
4.1.1. curant
4.1.2. angel falls
4.2. rivers
4.2.1. nile
4.2.2. amazon
4.2.3. rio
4.3. beaches
4.3.1. pink sand bermuda
4.4. senory
4.4.1. beeds
4.4.2. rice
4.4.3. sand
5. things with wheels
5.1. cars
5.1.1. gas
5.1.1.1. diesel
5.1.2. pumps
5.2. trains
5.2.1. tracks
5.2.2. tickets
5.2.3. thomas the tank
5.3. plows
5.4. planes
5.4.1. fyling
5.4.2. pilot
5.4.3. flight attendent
6. weather
6.1. rain
6.1.1. rain stick
6.1.2. plants growing
6.1.3. vapor
6.2. thunder
6.2.1. loud
6.2.2. electric
6.3. wind
6.4. lightning
6.4.1. electrostatic discharge
6.4.2. bolt
6.4.3. intra-cloud