I have a list like this

```
[['a', 'word'],
['University', 'org'],
['of', 'org'],
['Michigan', 'org'], 
['Michigan', 'country']]

```

What I wanna do is If I find the word michigan at first iteration I will return the label and I will replace that word with something like "deleted" and when I iterate again I should find the list like this

```
[['a', 'word'],
['University', 'org'],
['of', 'org'],
['deleted', 'org'],
['Michigan', 'country']]

```

What I tried is 

```
for i in range(len(list)):

    if word.lower()==list[i][0].lower():
        found= list[i][1]

        list.pop(i)
        list[i][0] = "deletedword"

        break

```