Q: In this task, you're given two sentences. Indicate if the first sentence clearly entails the second sentence (i.e., one can conclude the 2nd sentence by reading the 1st one). Indicate your answer with '1' if the first sentence entails the second sentence, otherwise answer with '0'.
Sentence 1: These early men learned to make fire. They traveled over land bridges from Africa, and began to populate the world, about 1 million years ago. Sentence 2: Humans existed 10,000 years ago.
A:
1