Anchor: The  1) By studying how the chimps' genes or immune system defeat the related virus, we can learn how to defeat HIV in humans.
Entailed: We can learn how to defeat HIV in humans by studying it in chimps.
Contradiction: HIV in humans is inherently different than HIV in chimps.
Contradiction: The chimps' genes cannot help with HIV
Contradiction: No significant findings came from the study on chimps.
Contradiction: He didn't bring anyone along, he only brought an empty plane. 
Contradiction: A guitarist is playing music.