query: Post-apocalyptic sci fi book series. Humanity lives below ground, 'ferals' above
positive_passages.docid: 26103
positive_passages.text: Looking for a post-apocalyptic trilogy where pilot is nursed back to health by natives of the land
negative_passages.docid: 2832
negative_passages.text: Book series with college students finding a way to open portals to other planets
negative_passages.docid: 4871
negative_passages.text: What young adult SF book is about a boy saved by aliens and domed colonies?
negative_passages.docid: 150922
negative_passages.text: Identification of a sci-fi book or book series based on the description of two alien races
negative_passages.docid: 16900
negative_passages.text: A short story about finding an inhabitable planet and meeting aliens
negative_passages.docid: 38545
negative_passages.text: Book series about preparation for a war at the Singularity
negative_passages.docid: 118194
negative_passages.text: Looking for the title of a book about alien invasion, mining asteroids and using lasers to defend earth
negative_passages.docid: 27187
negative_passages.text: Sci-fi series: humans are immune to telepathy, become soldiers for an alien group fighting against invertebrate telepaths
negative_passages.docid: 103871
negative_passages.text: What is the series where humans are genetically altered to go under cover on alien planets?
negative_passages.docid: 30957
negative_passages.text: Sci-fi satire book set in a post-scarcity society
negative_passages.docid: 58614
negative_passages.text: Book about space alien cats
negative_passages.docid: 8593
negative_passages.text: Book trilogy about twins in a walled city where people are sorted by intelligence
negative_passages.docid: 88570
negative_passages.text: Sci-fi book where humanity is rebuilt on a new planet after being wiped out
negative_passages.docid: 45148
negative_passages.text: Short story about survivors on Earth after the atmosphere has frozen
negative_passages.docid: 73252
negative_passages.text: Book set underground everyone lives in pods woman wants to see her son
negative_passages.docid: 6599
negative_passages.text: Story about shapeshifting aliens trying to invade Earth, thwarted by biodiversity
negative_passages.docid: 26918
negative_passages.text: Science-Fiction Book Series, with name similar to "Dunhau Chronicles"