What is the difference between LRT and LST?

Excuse me, could you please clarify the distinction between LRT and LST for me? I'm having trouble grasping the nuances between the two terms and how they are applied in the world of cryptocurrency and finance. Are they both forms of trading strategies, or do they serve different purposes altogether? Could you break it down in a way that's easy to understand for someone who's still new to this field? I'd really appreciate your insight on this matter.