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.

Kunci tersebut hilang dari saku celana saya.
Saku celana saya sobek.
cause

Pria itu menjalani operasi darurat.
Dia menderita serangan jantung.
cause

Saya masukkan kode gembok.
Gembok itu terbuka.

effect