While continuing to use the hot air balloon to search for the oil, it's decided that Ishigami Village needs to take up agriculture to prevent future food shortages, as well as to produce preserved food for their upcoming sea voyage.
They taught us that in the 
Self-Defense Force survival exercises.
.علمونا ذلك في تمارين البقاء لقوات الدفاع الذاتي
Das habe ich im Überlebenstraining
der JSDF gelernt.
Lo aprendí
en las prácticas de supervivencia.
Lo aprendí
en las prácticas de supervivencia.
J’ai appris ça
lors d’un exercice de survie.
L'ho imparato nelle esercitazioni di sopravvivenza 
delle forze di autodifesa.
Nos ensinaram isso nos exercícios 
de sobrevivência militares.
Так говорили на курсах по выживанию
в Силах самообороны.