- (concatenate 'string
- "animal/vertebrate/"
- stem))
- '("bird/"
- "mammal/"
- "mammal/bear/" "mammal/bear/grizzly"
- "mammal/mythical/" "mammal/mythical/mermaid"
- "mammal/mythical/unicorn"
- "mammal/platypus"
- "mammal/rodent/" "mammal/rodent/beaver"
- "mammal/rodent/mouse" "mammal/rodent/rabbit"
- "mammal/rodent/rat"
- "mammal/ruminant/" "mammal/ruminant/cow"
- "mammal/walrus"
- "snake/" "snake/python"))))
+ (concatenate 'string
+ "animal/vertebrate/"
+ stem))
+ '("bird/"
+ "mammal/"
+ "mammal/bear/" "mammal/bear/grizzly"
+ "mammal/mythical/" "mammal/mythical/mermaid"
+ "mammal/mythical/unicorn"
+ "mammal/platypus"
+ "mammal/rodent/" "mammal/rodent/beaver"
+ "mammal/rodent/mouse" "mammal/rodent/rabbit"
+ "mammal/rodent/rat"
+ "mammal/ruminant/" "mammal/ruminant/cow"
+ "mammal/walrus"
+ "snake/" "snake/python"))))