def compare_suffix_structures(text: str) -> dict:
    """
    Compare suffix array and suffix tree data structures.
 
    Args:
        text: The input text for which to build the structures
 
    Returns:
        A dictionary containing:
        - Construction time for both structures
        - Memory usage for both structures
        - Size (number of nodes/elements) of both structures
    """
    # Implement suffix array construction
 
    # Use suffix tree construction using Ukkonen's algorithm
 
    # Measure and compare metrics
 
    return {
        "suffix_array": {
            "construction_time_ms": 0,
            "memory_usage_kb": 0,
            "size": 0
        },
        "suffix_tree": {
            "construction_time_ms": 0,
            "memory_usage_kb": 0,
            "size": 0
        }
    }