isFollowUpToSingle

Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning.  
# Instructions
Focus on describing the relationship, not the entities themselves. 
# Response Format
Begin the description with \' Indicates...\'

Predicate: isFollowUpToSingle

Indicates that one event, message, or action directly continues or responds to a single specific prior event, message, or action.