query: Aliens invade Earth but have no end of problems controlling it
positive_passages.docid: 791
positive_passages.text: SF Short Story: alien apes invade during nuclear war
negative_passages.docid: 37844
negative_passages.text: Tree-like aliens invade Glasgow using mind-control
negative_passages.docid: 147383
negative_passages.text: Human & Alien captured, observed by higher beings
negative_passages.docid: 102346
negative_passages.text: Old Budrys(?) end-of-world/alien invasion of NYC story
negative_passages.docid: 125074
negative_passages.text: Earth as Water World, invasion at climax, fought off
negative_passages.docid: 16668
negative_passages.text: Why aren't alien planets as varied in climate as the Earth?
negative_passages.docid: 100510
negative_passages.text: Novel where a group of scientists in a spaceship encounter various aliens
negative_passages.docid: 86853
negative_passages.text: Novel about alien conquerers who conduct games to select servants
negative_passages.docid: 61205
negative_passages.text: SciFi from an Alien's perspective
negative_passages.docid: 68229
negative_passages.text: Mysterious contact by advanced aliens; leaves humans insane
negative_passages.docid: 142162
negative_passages.text: Alien surface transport that walks, not rolls
negative_passages.docid: 98333
negative_passages.text: What Sci-Fi book (1987 or older) had Aliens conquer earth and made Humans their slaves?
negative_passages.docid: 6591
negative_passages.text: Movie where Earth is conquered and humanity are cavemen slaves
negative_passages.docid: 152012
negative_passages.text: Post Apocalyptic Series With Alien Species
negative_passages.docid: 18832
negative_passages.text: What Sci-Fi novel is about aliens who consider it simply convenient to exterminate the human race?
negative_passages.docid: 55796
negative_passages.text: Story about space explorers who communicate but then decide they must destroy each other
negative_passages.docid: 3968
negative_passages.text: Duo of alien xenologists study couple of Terran explorers, later save them