My python code wont work : Struggling to work out why python complaining at line 4:


import sys
import re
problem = input("What is wrong with your mobile device?").lower
water = re.search(r'water', problem)
screen = re.search(r'screen', problem)+ re.search(r'smashed',problem)or re.search(r'cracked',problem)+ re.search(r'display',problem)
software=re.search(r'software',problem)+ re.search(r'program',problem)
keypad=re.search(r'keypad',problem)+ re.search(r'keyboard',problem)+ re.search(r'text',problem)
speakers=re.search(r'sound',problem)+ re.search(r"can't here",problem)+ re.search(r'cant hear',problem)
microphone=re.search(r'microphone',problem)+ re.search(r'cant hear me',problem)+ re.search(r"can't hear me",problem)
battery=re.search(r'battery',problem)+ re.search(r'swollen',problem)
charger=re.search(r'Charger',problem)+ re.search(r'charge',problem)+ re.search(r'charging',problem)
if water:
	print("If your phone has suffered water dammage there is not much you can do, it is recomended that you buy a new phone")
	sys.exit
elif screen:
	print("If your screen is cracked then it is recomended that you get it repaired this is not too expensive.")
	sys.exit
elif software:
	print("If you have a software issue then contact the product manurfacture, they are the only ones qualified to fix this.")
	sys.exit
elif keypad:
	print("Clean your keypad with a wetwipe, do not get the charger port or jack port wet.")
	sys.exit
elif microphone:
	print("Your microphone hole may be blocked, please clean this with a soft dry tooth brush, if this does not work then please retern the hand held device to its manufactures.")
	sys.exit
elif battery:
	print("If your battery is enlarged/swollen you have probbaly over charged it it is recomended that you buy a ned battery.")
	sys.exit
elif speakers:
	print("The speaker on most phone is located on the side or back or the device if this is blocked then please attemt to clean this with a dry, soft toothbrush, if this does not work please contact the product manurfacture.")
	sys.exit
elif charger:
	print("If you have not tryed buying a new charger then try that. If a new charger does not work, please send your mobile device to the product manurfacture.")
	sys.exit
else:
	print("please write your problem again, attempt to use keywords that relate to your problem.")
	sys.exit


END


If someone could tell me how to correct this or correct this themselves it would be much appreciated.