Definition:
        Undergoer that is central to an event or state that does not have control over the way the event occurs, is not structurally changed by the event, and/or is characterized as being in a certain position or condition throughout the state.
        Example:
        THE BALL rolled down the hill.
        
      
     
    
      Theme
    
    
    
      [
      
        +concrete
        
      
    ]
    
    
    
    
  
   
  
  
      
      
        Definition:
        Source that indicates the concrete, physical location where an event begins or a state becomes true.
        Example:
        Amanda drove the package FROM HOME.
        
      
     
    
      Initial_Location
    
    
    
      [
      
        +concrete
        
      
    ]
    
    
    
    
  
   
  
  
      
      
        Definition:
        Goal that is a concrete, physical location.
        Example:
        Tamara poured water INTO THE BOWL.
        
      
     
    
      Destination
    
    
    
      [
      
        +concrete
        
      
    ]
    
    
    
    
  
   
  
  
      
      
        Definition:
        Trajectory refers to the path or the 'region' the motion traverses when the motion event expresses a change of location.
        Example:
        He came THROUGH THE DOOR.
        
      
     
    
      Trajectory
    
    
    
      [
      
        +concrete
        
      
    ]