Convert list of IOB formatted data to simple IOB formatted data

Question

I am a beginner in nlp and want to generate IOB format from the list of sentences.

I have data in IOB format in the pattern below:

[('in', 'O'), ('this', 'B-DATE'), ('week', 'I-DATE'), ('how', 'O'), ('many', 'O'), ('activities', 'O'), ('do', 'O'), ('i', 'O'), ('have', 'O'), ('?', 'O')]

The expected output is

in O
this B-DATE
week I-DATE
how O
many O
activities O
do O
i O
have O
? O

Answer 1

If you need a new list containing only strings composed from initial list's members, you can try something like this:

initial = [('in', 'O'), ('this', 'B-DATE'), ('week', 'I-DATE'), ('how', 'O'), ('many', 'O'), ('activities', 'O'), ('do', 'O'), ('i', 'O'), ('have', 'O'), ('?', 'O')]

modified = [' '.join(z) for z in initial]

for row in modified:
    print(row)

Output:

in O
this B-DATE
week I-DATE
how O
many O
activities O
do O
i O
have O
? O