<s>[INST] <<SYS>>
You are a helpful, respectful and honest assistant. Always answer as helpfully as possible, while being safe.  Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature.
If a question does not make any sense, or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
<</SYS>>

Extract from the following context the minimal span word for word that best answers the question. Think step by step and explain your reasoning. Then give the answer in JSON format as follows:
```json
{
  "answer": ...
}
```
If the answer is not in the context, the answer should be "?".
Question: ماذا يعني 50i ؟
Context: بالنسبة للتسمية التجارية للمنتج ، غالبا ما يتم إسقاط معدل الإطارات ويتم تضمينه من السياق ( على سبيل المثال ، جهاز تلفزيون 1080i ) . يمكن أيضا تحديد معدل الإطارات بدون دقة . على سبيل المثال ، 24p تعني 24 إطارا للمسح التدريجي في الثانية ، و 50i تعني 25 إطارا متشابكا في الثانية . [/INST] ```json
{<answer_start>
  "answer": "25 إطارا متشابكا في الثانية"
  <answer_end>
}
``` </s>
بالنسبة للتسمية التجارية للمنتج ، غالبا ما يتم إسقاط معدل الإطارات ويتم تضمينه من السياق ( على سبيل المثال ، جهاز تلفزيون 1080i ) . يمكن أيضا تحديد معدل الإطارات بدون دقة . على سبيل المثال ، 24p تعني 24 إطارا للمسح التدريجي في الثانية ، و 50i تعني 25 إطارا متشابكا في الثانية .
ماذا يعني 50i ؟
{'answer_start': [244], 'text': ['25 إطارا متشابكا في الثانية']}