Section 5.4 Non-Solicitation.
<omitted>

(b) <omitted> Notwithstanding the foregoing, at any time prior to obtaining the East Stockholder Approval, and subject to East’s compliance in all material respects at all times with the provisions of this Section 5.4 and Section 5.3, in response to a Superior Proposal with respect to East that was not initiated, solicited, knowingly encouraged or knowingly facilitated by East or any of the East Subsidiaries or any of their respective Representatives, the East Board may make an East Adverse Recommendation Change; provided, however, that East shall not be entitled to exercise its right to make an East Adverse Recommendation Change in response to a Superior Proposal with respect to East (x) until three (3) Business Days after East provides written notice to Central (an “East Notice”) advising Central that the East Board or a committee thereof has received a Superior Proposal, specifying the material terms and conditions of such Superior Proposal, and identifying the Person or group making such Superior Proposal, (y) if during such three (3) Business Day period, Central proposes any alternative transaction (including any modifications to the terms of this Agreement), unless the East Board determines in good faith (after consultation with East’s financial advisors and outside legal counsel, and taking into account all financial, legal, and regulatory terms and conditions of such alternative transaction proposal, including any conditions to and expected timing of consummation, and any risks of non-consummation of such alternative transaction proposal) that such alternative transaction proposal is not at least as favorable to East and its stockholders as the Superior Proposal (it being understood that any change in the financial or other material terms of a Superior Proposal shall require a new East Notice and a new two (2) Business Day period under this Section 5.4(b)) and (z) unless the East Board, after consultation with outside legal counsel, determines that the failure to make an East Adverse Recommendation Change would breach its fiduciary duties.  (Page 76)


Section 5.4 Non-Solicitation.
<omitted>

(c)    Notwithstanding the first sentence of Section 5.4(b), at any time prior to obtaining the East Stockholder Approval, and subject to East’s compliance in all material respects at all times with the provisions of this Section 5.4 and Section 5.3, in response to an East Intervening Event, the East Board may make an East Adverse Recommendation Change described in clause (A) of the definition thereof if the East Board (i) determines in good faith, after consultation with East’s outside legal counsel and any other advisor it chooses to consult, that the failure to make such East Adverse Recommendation Change would breach its fiduciary duties, (ii) determines in good faith that the reasons for making such East Adverse Recommendation Change are independent of any Acquisition Proposal (whether pending, potential or otherwise) with respect to East and (iii) provides written notice to Central (an “East Notice of Change”) advising Central that the East Board is contemplating making an East Adverse  (Page 76)

Question: Fiduciary exception to COR covenant
Category: Deal Protection and Related Provisions
Answer: "Breach" of fiduciary duties