HTML form read only bug [duplicate]

I'm new to HTML. I'm trying to create an inline form that consists of readonly plain text and input. However, some part of my output is missing. Expected {{i}} is ('I', 'body') where as output is ('I', Can anyone suggest what goes wrong? Thanks

My html file:

 Please select the relevant dependency that will add to your output 
     {% for i in extraction %}     {{i}}     
         
           Dependency                    
         
           Polarity                    
         Add       
     {% endfor %} 

Here is rendered html_template from flask:

return render_template('annotation.html',                              first_sentence = first_sentence,                              extraction = [('I', 'body'),('d', 'adasd')])