TASK DEFINITION: In this task your given two statements. 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.
PROBLEM: The woman spotted her friend from across the room.
The woman waved.

SOLUTION: cause

PROBLEM: The plastic container melted.
I placed the container on the hot stove.

SOLUTION: cause

PROBLEM: I turned the page on the calendar.
It was the beginning of a new month.

SOLUTION:
cause