Write a python function to check whether two given lines are parallel or not.
def parallel_lines(line1, line2):
  return line1[0]/line1[1] == line2[0]/line2[1]
<s>[INST]<<SYS>>Given a task and its code, generate test cases for the code.<</SYS>>Write a python function to check whether two given lines are parallel or not.
def parallel_lines(line1, line2):
  return line1[0]/line1[1] == line2[0]/line2[1][/INST]assert parallel_lines([2,3,4], [2,3,8]) == True
assert parallel_lines([2,3,4], [4,-3,8]) == False
assert parallel_lines([3,3],[5,5]) == True</s>