| realistic(adjective, true, real, happen) |
| nonfiction(noun, literature, form, science, guide) |
| documentary(noun, adjective, truth, reality, facts) |
| popular scientific literature(expression, literature, science, nonfiction) |
| popular-science books(expression, literature, science, nonfiction) |
| popular-science literature(expression, literature, science, nonfiction) |
| popular-scientific books(expression, literature, science, nonfiction) |
| popular-scientific literature(expression, literature, science, nonfiction) |
| popular scientific books(expression, literature, science, nonfiction) |
| academic literature(expression, literature, science, documentary) |
| documentary prose(expression, literature, form, prose) |
| non-fiction books(expression, literature, material, works) |
| non-fiction literature(expression, literature, material, works) |
| non-fiction prose(expression, literature, form, prose) |
| non-fiction works(expression, literature, material, works) |
| non-fiction writings(expression, literature, material, works) |
| nonfiction books(expression, literature, material, works) |
| nonfiction literature(expression, literature, material, works) |
| nonfiction works(expression, literature, material, works) |
| nonfiction writings(expression, literature, material, works) |