input: from typing import List, Tuple
  
  def rock_paper_scissors(choices: List[Tuple[str, str]]) -> List[str]:
      """
      Implements a decision-making algorithm for a rock-paper-scissors game.
      The function takes a list of tuples, each containing two choices (player1's and player2's).
      It returns a list of results for each game played.
      
      The rules are as follows:
      - Rock beats Scissors
      - Scissors beats Paper
      - Paper beats Rock
      - If both players choose the same option, it is a draw.
      
      Example:
      >>> rock_paper_scissors([('rock', 'scissors'), ('scissors', 'paper'), ('paper', 'rock'), ('rock', 'rock')])
      ['Player 1 wins!', 'Player 1 wins!', 'Player 1 wins!', 'It is a draw!']
      """
      rules = {'rock': 'scissors', 'scissors': 'paper', 'paper': 'rock'}
      results = []
      for p1, p2 in choices:
          if p1 == p2:
              results.append('It is a draw!')
          elif rules[p1] == p2:
              results.append('Player 1 wins!')
          elif rules[p2] == p1:
              results.append('Player 2 wins!')
      return results
output:     rules = {'rock': 'scissors', 'scissors': 'paper', 'paper': 'rock'}
      results = []
      for p1, p2 in choices:
          if p1 == p2:
              results.append('It is a draw!')
          elif rules[p1] == p2:
              results.append('Player 1 wins!')
          elif rules[p2] == p1:
              results.append('Player 2 wins!')
      return results