System: You are a helpful and precise assistant in checking the quality of the answer.
User: We would like to request your feedback on the performance of the response of the assistant to the user instruction displayed below. In the feedback, I want you to rate the quality of the response in these 3 categories according to each scoring rubric:

Comprehension: Does the response fulfill the requirements of the instruction by providing relevant information especially when the instruction is complex and includes multiple requirements? This includes responding in accordance with the explicit and implicit purpose of given instruction.
Score 1: The response is completely unrelated to the instruction, or the model entirely misunderstands the instruction.
Score 2: Most of the key points in the response are irrelevant to the instruction, and the response misses major requirements of the instruction.
Score 3: Some major points in the response contain irrelevant information or miss some requirements of the instruction.
Score 4: The response is relevant to the instruction but misses minor requirements of the instruction.
Score 5: The response is perfectly relevant to the instruction, and the model fulfills all of the requirements of the instruction.
Factuality: Did the model extract pertinent and accurate background knowledge without any misinformation when factual knowledge retrieval is needed? Is the response supported by reliable evidence or citation of the source of its information?
Score 1: The model did not extract pertinent background knowledge and provided inaccurate or misleading information. There is no support for the response through reliable evidence or source citations.
Score 2: The model extracted some relevant background knowledge but included inaccuracies or incomplete information. The response has minimal support through evidence or citations, with questionable reliability.
Score 3: The model extracted generally accurate and pertinent background knowledge, with minor inaccuracies or omissions. The response is partially supported by evidence or citations, but the support may not be comprehensive or fully reliable.
Score 4: The model extracted mostly accurate and relevant background knowledge but missed minor evidence or citations to support the response.
Score 5: The model extracted complete and accurate background knowledge without any misinformation. The response is fully supported by reliable evidence or citations that are accurate, relevant, and comprehensive in addressing the instruction.
Readability: Is the response structured to promote readability and coherence? Does the response exhibit excellent organization?
Score 1: The response is completely unclear, making comprehension difficult.
Score 2: The response has significant areas of ambiguity or disorganization, critically affecting reader comprehension.
Score 3: The response contains some unclear components, or its organization could be improved.
Score 4: The response is generally understandable but could be further optimized for readability.
Score 5: The response is clear and well-organized, enabling the reader to effortlessly follow the content.
[Instruction]
pre_text: comcast corporation changes in our net deferred tax liability in 2015 that were not recorded as deferred income tax expense are primarily related to decreases of $ 28 million associated with items included in other comprehensive income ( loss ) and decreases of $ 132 million related to acquisitions made in 2015 . our net deferred tax liability includes $ 23 billion related to cable franchise rights that will remain unchanged unless we recognize an impairment or dispose of a cable franchise . as of december 31 , 2015 , we had federal net operating loss carryforwards of $ 135 million and various state net operating loss carryforwards that expire in periods through 2035 . as of december 31 , 2015 , we also had foreign net operating loss carryforwards of $ 700 million that are related to the foreign operations of nbcuni- versal , the majority of which expire in periods through 2025 . the determination of the realization of the state and foreign net operating loss carryforwards is dependent on our subsidiaries 2019 taxable income or loss , appor- tionment percentages , and state and foreign laws that can change from year to year and impact the amount of such carryforwards . we recognize a valuation allowance if we determine it is more likely than not that some portion , or all , of a deferred tax asset will not be realized . as of december 31 , 2015 and 2014 , our valuation allowance was primarily related to state and foreign net operating loss carryforwards . uncertain tax positions our uncertain tax positions as of december 31 , 2015 totaled $ 1.1 billion , which exclude the federal benefits on state tax positions that were recorded as deferred income taxes . included in our uncertain tax positions was $ 220 million related to tax positions of nbcuniversal and nbcuniversal enterprise for which we have been indemnified by ge . if we were to recognize the tax benefit for our uncertain tax positions in the future , $ 592 million would impact our effective tax rate and the remaining amount would increase our deferred income tax liability . the amount and timing of the recognition of any such tax benefit is dependent on the completion of examinations of our tax filings by the various tax authorities and the expiration of statutes of limitations . in 2014 , we reduced our accruals for uncertain tax positions and the related accrued interest on these tax positions and , as a result , our income tax expense decreased by $ 759 million . it is reasonably possible that certain tax contests could be resolved within the next 12 months that may result in a decrease in our effective tax rate . reconciliation of unrecognized tax benefits . table: ( in millions ) 2015 2014 2013 balance january 1 $ 1171 $ 1701 $ 1573 additions based on tax positions related to the current year 67 63 90 additions based on tax positions related to prior years 98 111 201 additions from acquired subsidiaries 2014 2014 268 reductions for tax positions of prior years -84 ( 84 ) -220 ( 220 ) -141 ( 141 ) reductions due to expiration of statutes of limitations -41 ( 41 ) -448 ( 448 ) -3 ( 3 ) settlements with tax authorities -75 ( 75 ) -36 ( 36 ) -287 ( 287 ) balance december 31 $ 1136 $ 1171 $ 1701 post_text: as of december 31 , 2015 and 2014 , our accrued interest associated with tax positions was $ 510 million and $ 452 million , respectively . as of december 31 , 2015 and 2014 , $ 49 million and $ 44 million , respectively , of these amounts were related to tax positions of nbcuniversal and nbcuniversal enterprise for which we have been indemnified by ge . during 2015 , the irs completed its examination of our income tax returns for the year 2013 . various states are examining our tax returns , with most of the periods relating to tax years 2000 and forward . the tax years of our state tax returns currently under examination vary by state . 109 comcast 2015 annual report on form 10-k . question: what was the change in unrecognized tax benefits from the end of 2014 to the end of 2015?

[Ground truth Answer]
-35

[Assistant's Response]
The change in unrecognized tax benefits from the end of 2014 to the end of 2015 was a decrease of $35 million. At the end of 2014, the balance of unrecognized tax benefits was $1,171 million, and by the end of 2015, it had decreased to $1,136 million.

[The End of Assistant's Response]

Please give feedback on the assistant's responses. Also, provide the assistant with a score on a scale of 1 to 5 for each category, where a higher score indicates better overall performance. Make sure to give feedback or comments for each category first and then write the score for each category. Only write the feedback corresponding to the scoring rubric for each category. The scores of each category should be orthogonal, indicating that 'Efficiency of User Alignment' should not be considered for 'Readability of User Alignment' category, for example. 

Lastly, return a Python dictionary object that has skillset names as keys and the corresponding scores as values.

[System]



Assistant: