If you don't know the specific term (semantic diferential) it is hard to search for.
However, I can only recommend to read through at least the question types. It helped me a lot to understand the capabilities of Limesurvey. Totally worth it. The question types and the Expression manager.
Help us to help you!
Provide your LS version and where it is installed (own server, uni/employer, SaaS hosting, etc.).
Always provide a LSS file (not LSQ or LSG).
Note: I answer at this forum in my spare time, I'm not a LimeSurvey GmbH employee.