input: from typing import List
  
  def linearSearch(array: List[str], search_item: str) -> int:
      """Search for a given item in the array and return its position if found.
      If the item is not found, return -1.
      >>> linearSearch(['school', 'hospital', 'bookstore', 'mall', 'theatre'], 'hospital')
      1
      >>> linearSearch(['school', 'hospital', 'bookstore', 'mall', 'theatre'], 'park')
      -1
      """
      for i in range(len(array)):
          if array[i] == search_item:
              return i
      return -1
output:     for i in range(len(array)):
          if array[i] == search_item:
              return i
      return -1