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'.

Input: Consider Input: Sentence 1: World health officials warned yesterday that West Africa and Central Africa were on the verge of the worst polio outbreak in years, stemming from the refusal of a single state in northern Nigeria to vaccinate children against the disease. Sentence 2: African polio outbreak feared

Output: 1


Input: Consider Input: Sentence 1: After leaving Time-Life, Shuker joined the Public Broadcast Laboratory, forerunner of PBS, and participated in two pioneering films -- 'The Chair,' about an attorney trying to save a condemned man, and 'Free At Last,' a 90-minute documentary about Dr. Martin Luther King Jr. that by chance was being made when King was murdered in 1968. Sentence 2: Martin Luther King was murdered in 1968.

Output: 1


Input: Consider Input: Sentence 1: South African President Thabo Mbeki, the main mediator in Côte d'Ivoire's peace process, said on Sunday that Pretoria is heightening its intervention in the West African nation to pave the way for elections later this year. Sentence 2: Pretoria is located in Côte d'Ivoire.


Output: 0