| conjecture(noun, verb, think, speculate, topic) |
| contention(noun, concern, point, difficulty, issue) |
| controversy(noun, concern, dispute, point, difficulty) |
| delve(verb, study, consider, examine, review) |
| deny(verb, oppose, criticize, dispute, challenge) |
| dilemma(noun, trouble, dispute, difficulty, issue) |
| discuss(verb, check, consider, maintain, oppose) |
| discussion(noun, dispute, issue, material, matter) |
| heading |
| inspect(verb, study, check, consider, examine) |
| knock(noun, verb, order, force, press) |
| motif(noun, point, issue, idea, material) |
| object to(verb, expression, get, oppose, fight) |
| pose(verb, present, cause, create, put) |
| refute(verb, consider, oppose, dispute, challenge) |
| research(noun, verb, study, check, consider) |
| skepticism(noun, certain, request, doubt, uncertainty) |
| study(noun, verb, check, consider, observe) |
| stumper(noun, trouble, challenge, secret, puzzle) |
| vacillate(verb, dispute, stick, challenge, doubt) |