With no explanation, label text_A→text_B with either "False" or "True".
text_A: The sun was covered by a thick cloud all morning, but luckily, by the time the picnic started, it was out. The it is more likely to refer to The sun than a thick cloud because  it is the primary source of light for the event.
text_B: In "The sun was covered by a thick cloud all morning, but luckily, by the time the picnic started, it was out. ", The it is more likely to refer to The sun than a thick cloud because  it is the primary source of light for the event.
True.