Question: Which segment came through the Guanghua Gate?
About the article "Nanking Massacre", section "Assault and capture of Nanking".

Candidate passages:
At dawn on December 9, the 36th Infantry Regiment, attached to the 9th Division from Kanazawa, fought its way to Guanghua Gate after a forced march lasting several days and nights.
The wall in which Guanghua Gate was situated was approximately 13 meters high.
In front of the wall was the outer moat, approximately 135 meters wide.
Guanghua Gate was actually a double gate, with outer and inner archways, and iron doors.
The two archways were about 20 meters apart.
Anti-tank trenches and five rows of chevaux-de-frise blocked the road leading to the gate.
The muzzles of machine guns protruding from loopholes on top of the walls were aimed directly at Japanese positions.
The attack on Guanghua Gate commenced at 2:00 p.m., after the deadline for surrender had passed.
But the gate was so solidly built that they could make little headway.
Soldiers made desperate charges against the wall, only to be killed, one after the other.
Japanese troops began firing their mountain guns, and finally succeeded in demolishing part of the gate.
Portions of the wall crumbled, the debris forming a steep hill.
The 1st Battalion ascended that hill and, at last, broke through and seized the outer gate.
By the time the Japanese flag had been raised amidst the rubble, night had fallen.
Guanghua Gate was defended by Chiang Kai-shek's elite supervisory unit.
The day after the gate had been partially destroyed, Chinese forces were doubled in size, to 1,000.
Barricades of sandbags covered with barbed-wire entanglements had already been erected on the periphery of the gate.
Furthermore, machine guns were aimed at the Japanese by Chinese soldiers protected by concrete pillboxes.
Outside the city, at Zijinshan (紫金山) (northeast of Guanghua Gate) and Yuhuatai( 雨花台) (south of Zhonghua Gate), Japanese and Chinese troops were locked in a desperate struggle.
The Nanking Defense Corps was aware that if Guanghua Gate fell to the Japanese then hostilities outside the city would become pointless within a short period of time.
Knowing this they were motivated to fight even harder.
The Chinese brought in tanks, from which they fired on Japanese soldiers inside the outer gate which immobilized them.
Then the Nanking Defense Corps began strafing the Japanese from the top of the gate.
Next came an incendiary attack: the Chinese threw lumber down on the Japanese, and poured petroleum on it, which they then ignited.
The Japanese 1st Company was trapped inside the outer gate.
There 88 Japanese soldiers fell, one after another, till only eight remained.
They were saved from total annihilation by Japanese heavy artillery which began firing on the morning of December 12.
Gradually, the Japanese gained the upper hand.
Finally, at 6:00 a.m. on December 13, the Sabae Regiment occupied Guanghua Gate. 
^ Instead of walking through the door, Hamish came through the back, a castle hallway adjacent to a dungeon, while riding his horse.<br>† Instead of walking through the door, Josie came through the back, as to appear as if she had hopped out of the door of a limousine.<br>~ Featured Damien Fleming as a guest performer.<br>§ After walking through the door, Peter followed a hidden corridor to the back of set to appear as if emerging from inside a tent.<br># After walking through the door, Rob had to walk down a hidden corridor which then lead to hospital style double-hinged doors which he walked through.<br>≈ Josie's segment was done in front of a green-screen.
Peter's segment was done from the front yard of a real house opposite the Melbourne Showgrounds entrance gate.<br>Rob's scenario was actually filmed 2nd, and Josie's was filmed 4th.
The segment order was switched in the broadcast show. 
Liyang Guanghua Senior High School is a school located in the southern city, of Liyang, China. 
Type IIA topoisomerase operates through a "two-gate" mechanism (though this is a historical notation), a mechanism supported by biochemistry (Roca and Wang) as well as by structural work (Berger and Wang) (see above).
A strand of DNA, called the gate, or G-segment, is bound by a central DNA-binding gate (DNA-gate).
A second strand of DNA, called the transport, or T-segment, is captured by the dimerization of the N-terminal ATPase domain (the ATPase-gate) when two molecules of ATP bind.
Hydrolysis of ATP and release of an inorganic phosphate leads to the cleavage of the G-segment, as the catalytic tyrosines form a covalent phosphotyrosine bond with the 5' end of the DNA.
This creates a four-base overhang and a double-stranded break in the G-segment.
As the DNA-binding gate separates, the T-segment is transferred through the G-segment.
The G-segment is sealed, leading to the C-terminal gate (or C-gate) to open, allowing for the release of the T-segment.
Release of product ADP leads to a reset of the system, and allows a second T-segment to be captured.
Type IIB topoisomerases operate through a similar fashion, except that the protein forms a two-base overhang in the G-segment and the C-terminal gate is completely missing. 
On December 13, the Japanese Army completed the encirclement of the city.
The 6th and 114th Divisions of the Japanese Army were the first to enter the city.
At the same time, the 9th Division entered via the nearby Guanghua Gate, and the 16th Division entered via the Zhongshan and the Taiping Gate.
That same afternoon, two small Japanese Navy fleets arrived on both sides of the Yangtze River.
Nanking had fallen to the Japanese by nightfall.
Despite Chiang Kai-shek's support and protection, Tang was blamed for the failure to defend Nanking which resulted in the consequent Nanking Massacre.