what does mean this error
lexicon = {
'north' :"direction",
'south' :"direction",
'east' :"direction",
'west' :"direction",
'down' :"direction",
'up' :"direction",
'left' :"direction",
'right' :"direction",
'back' :"direction",
'go' :"verbs",
'stop' :"verbs",
'kill' :"verbs",
'eat' :"verbs",
'the' :"stopWords",
'in' :"stopWords",
'of' :"stopWords",
'from' :"stopWords",
'at' :"stopWords",
'it' :"stopWords",
'door' :"nouns",
'bear' :"nouns",
'princess' :"nouns",
'cabinet' :"nouns",
'0' :'number',
'1' :'number',
'2' :'number',
'3' :'number',
'4' :'number',
'5' :'number',
'6' :'number',
'7' :'number',
'8' :'number',
'9' :'number'
}
stuff = input("→❓→ ")
words = stuff.split()
def scan(key):
# pass
result = []
count = 0
for i in key:
wordType = lexicon.get(i)
pair = [(wordType, i)]
result.append(pair)
if wordType == 'direction':
print(result[count])
count = count + 1
scan(words)