shipwreckInvolved

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: shipwreckInvolved

Indicates that an entity was involved in a shipwreck event, either as a participant, cause, or affected object.