FISHERS ​ — whether humans or birds — ​ have three fundamental problems to solve: (1) find fish, (2) approach them, and (3) capture them.
PENANGKAP ikan ​ — entah manusia atau burung — ​ punya tiga kendala yang harus diatasi: (1) menemukan, (2) mendekati, lalu (3) menangkap ikan.