instruction:
In this task your given two statements in Indonesian. You must judge whether the second sentence is the cause or effect of the first one. Label the instances as "cause" or "effect" based on your judgment. The sentences are separated by a newline character.
question:
Burung itu mengepakkan sayapnya.
Ia terbang ke atas.
answer:
effect


question:
Buku-buku jatuh dari rak buku.
Rak buku itu terguncang oleh gempa bumi.
answer:
cause


question:
Pria itu menjalani operasi darurat.
Dia menderita serangan jantung.
answer:

cause