SimilarityRank
cosmonauts 0.922 90195
astronaut 0.814 28630
Soyuz 0.806 53223
astronauts 0.762 24220
Leonov 0.745 99214
spacecraft 0.731 16461
Yuri 0.718 36615
orbiter 0.705 76092
Astronaut 0.692 63562
Astronauts 0.681 92629
spaceship 0.676 31046
Valery 0.673 80073
spaceflight 0.668 67313
Oleg 0.667 57951
Spacecraft 0.665 76108
orbiting 0.662 32947
orbit 0.660 11481
Sergei 0.658 34919
lander 0.657 64228
Anatoly 0.654 88088
Nikolai 0.651 51606
Soviet 0.644 5862
Sputnik 0.643 66372
manned 0.639 21210
Phobos 0.636 91146