List of premiers of China
List of Premiers of the ROC (since 1912)
Table:
№	Portrait	Name (Birth–Death)	Term of Office	Days	Political party	President

15	-	Xu Shiying 許世英 Xǔ Shìyīng (1873–1964)	26 December 1925	4 March 1926	68	Non-partisan	Duan Qirui

—	-	Jia Deyao 賈德耀 Jiǎ Déyào (1880–1940)	4 March 1926	20 April 1926	47	Non-partisan	Duan Qirui

—	-	Hu Weide 胡惟德 Hú Wéidé (1863–1933)	20 April 1926	13 May 1926	23	Non-partisan	Hu Weide (co-serving)

(11)	-	W.W. Yan Yan Huiqing 顏惠慶 Yán Huìqìng (1877–1950)	13 May 1926	22 June 1926	40	Non-partisan	W.W. Yan (co-serving)

—	-	Du Xigui 杜錫珪 Dù Xīguī (1875–1933)	22 June 1926	1 October 1926	101	Non-partisan	Du Xigui (co-serving)

—	-	Wellington Koo Koo Vi-kyuin 顧維鈞 Gù Wéijūn (1887–1985)	1 October 1926	18 June 1927	260	Non-partisan	V.K. Wellington Koo (co-serving)

—	-	Pan Fu 潘復 Pān Fù (1883–1936)	18 June 1927	2 June 1928	350	Non-partisan	Zhang Zuolin

Given the table that covers the 'List of Premiers of the ROC (since 1912)' part of 'List of premiers of China', produce a single-sentence summary focused on the highlighted cells and provide it inside the JSON object {"answer": "YOUR ANSWER"}.