```
import sys
from bs4 import BeautifulSoup

# Define input and output file paths
html_file_path = 'table.html'
tsv_file_path = 'table.tsv'

try:
    # Read the HTML file
    with open(html_file_path, 'r', encoding='utf-8') as f:
        html_content = f.read()

except FileNotFoundError:
    print(f"Error: Input file '{html_file_path}' not found.", file=sys.stderr)
    sys.exit(1)
except Exception as e:
    print(f"Error reading file '{html_file_path}': {e}", file=sys.stderr)
    sys.exit(1)

# Parse the HTML content
try:
    soup = BeautifulSoup(html_content, 'lxml')
except Exception as e:
    print(f"Error parsing HTML: {e}", file=sys.stderr)
    sys.exit(1)

# --- Main data processing ---
tsv_lines = []

# 1. First, capture standard HTML table data (as before)
html_tables = soup.find_all('table')
if html_tables:
    tsv_lines.append("# --- HTML Table Data ---")
    for i, table in enumerate(html_tables):
        if len(html_tables) > 1:
            tsv_lines.append(f"# --- Data from Table {i+1} ---")

        rows = table.find_all('tr')
        for row in rows:
            cells = row.find_all(['td', 'th'])
            row_data = []
            for cell in cells:
                cell_text = cell.get_text(separator=" ", strip=True)
                cell_text = cell_text.replace('\n', ' ').replace('\r', '').replace('\t', ' ')
                row_data.append(cell_text)
            tsv_lines.append('\t'.join(row_data))
    tsv_lines.append("") # Add a blank line after table data
else:
    print("No <table> elements found.", file=sys.stderr)


# 2. Now, capture <datalist> elements and format them into a table
datalists = soup.find_all('datalist')
if datalists:
    tsv_lines.append("# --- Datalist Options as Table ---")

    headers = []
    all_options_by_datalist = [] # List of lists, each inner list holds options for one datalist
    max_num_options = 0

    for i, dl in enumerate(datalists):
        # Use datalist 'id' as header, or generate one if missing
        dl_id = dl.get('id')
        if not dl_id:
            dl_id = f"Datalist_{i+1}"
        headers.append(dl_id)

        current_dl_options = []
        options_in_dl = dl.find_all('option')
        for opt in options_in_dl:
            # Get option's 'value'; if not present, get its text.
            # Clean it by replacing internal newlines/tabs to avoid breaking TSV structure.
            cell_content = opt.get('value')
            if cell_content is None: # Specifically check for None, as "" can be a valid value
                cell_content = opt.get_text(strip=True)
            else: # If value exists, still strip it in case it has leading/trailing whitespace
                cell_content = cell_content.strip()

            # Further clean cell_content to remove any internal tabs or newlines
            cell_content = cell_content.replace('\t', ' ').replace('\n', ' ').replace('\r', '')
            current_dl_options.append(cell_content)

        all_options_by_datalist.append(current_dl_options)
        if len(current_dl_options) > max_num_options:
            max_num_options = len(current_dl_options)

    # Add the header row for the datalist table
    if headers:
        tsv_lines.append('\t'.join(headers))

        # Add data rows for the datalist table
        for i in range(max_num_options):
            row_data = []
            for options_list in all_options_by_datalist:
                if i < len(options_list):
                    row_data.append(options_list[i])
                else:
                    row_data.append('') # Add empty string for datalists with fewer options
            tsv_lines.append('\t'.join(row_data))
    tsv_lines.append("") # Add a blank line after datalist data
else:
    print("No <datalist> elements found.", file=sys.stderr)


# 3. Extract <rect> elements and their associated <text> (specifically for "-35" and "-10")
rects = soup.find_all('rect')
if rects:
    tsv_lines.append("# --- Rect Elements with Text ---")
    
    # We'll create separate lists for "-35" and "-10" rects
    rects_minus_35 = []
    rects_minus_10 = []
    
    for rect in rects:
        # Get rect attributes
        rect_data = {
            'width': rect.get('width', ''),
            'height': rect.get('height', ''),
            'x': rect.get('x', ''),
            'y': rect.get('y', ''),
            'fill': rect.get('fill', ''),
            'stroke-width': rect.get('stroke-width', ''),
            'stroke': rect.get('stroke', '')
        }
        
        # Find the next sibling that's a <text> element
        next_sibling = rect.find_next_sibling('text')
        if next_sibling:
            text_content = next_sibling.get_text(strip=True)
            if text_content == "-35":
                rects_minus_35.append(rect_data)
            elif text_content == "-10":
                rects_minus_10.append(rect_data)
    
    # Add the "-35" rects to TSV
    if rects_minus_35:
        tsv_lines.append("\n# Rectangles with text '-35'")
        tsv_lines.append("width\theight\tx\ty\tfill\tstroke-width\tstroke")
        for rect in rects_minus_35:
            tsv_lines.append(f"{rect['width']}\t{rect['height']}\t{rect['x']}\t{rect['y']}\t{rect['fill']}\t{rect['stroke-width']}\t{rect['stroke']}")
    
    # Add the "-10" rects to TSV
    if rects_minus_10:
        tsv_lines.append("\n# Rectangles with text '-10'")
        tsv_lines.append("width\theight\tx\ty\tfill\tstroke-width\tstroke")
        for rect in rects_minus_10:
            tsv_lines.append(f"{rect['width']}\t{rect['height']}\t{rect['x']}\t{rect['y']}\t{rect['fill']}\t{rect['stroke-width']}\t{rect['stroke']}")
else:
    print("No <rect> elements found.", file=sys.stderr)


# --- Write the TSV output to a file ---
if not tsv_lines:
    print("No data (neither tables nor datalists nor rects) found to write to TSV.", file=sys.stderr)
    # Create an empty TSV file as requested, even if no data
    try:
        with open(tsv_file_path, 'w', encoding='utf-8') as f:
            pass # Just create the empty file
        print(f"Created empty file '{tsv_file_path}'.")
    except Exception as e:
        print(f"Error creating empty output file: {e}", file=sys.stderr)
        sys.exit(1)
else:
    try:
        with open(tsv_file_path, 'w', encoding='utf-8') as f:
            f.write('\n'.join(tsv_lines))
        print(f"Successfully converted data from '{html_file_path}' to '{tsv_file_path}'.")
    except Exception as e:
        print(f"Error writing output file '{tsv_file_path}': {e}", file=sys.stderr)
        sys.exit(1)
```

Remove all code related to <options> processing. Remove all comments.