Question: What traditional Japanese gate is located in front of one of the castle gates?

Context paragraphs:
Torii: A torii (鳥居 ) is a traditional Japanese gate most commonly found at the entrance of or within a Shinto shrine, where it symbolically marks the transition from the profane to sacred.

Geta (footwear): Geta (下駄 ) are a form of traditional Japanese footwear that resemble both clogs and flip-flops.  They are a kind of sandal with an elevated wooden base held onto the foot with a fabric thong to keep the foot well above the ground.  They are worn with traditional Japanese clothing such as kimono or yukata, but (in Japan) also with Western clothing during the summer months.  Sometimes geta are worn in rain or snow to keep the feet dry, due to their extra height and impermeability compared to other footwear such as zōri.  They make a similar noise to flip-flops slapping against the heel whilst walking.  When worn on water or dirt, flip-flops may flip dirt or water up the back of the legs.  This does not tend to happen with the heavier Japanese geta.

Uirō: Uirō (in Japanese: 外郎, 外良, ういらう), also known as uirō-mochi (外郎餠 ) , is a traditional Japanese steamed cake made of rice flour and sugar.  It is chewy, similar to "mochi", and subtly sweet.  Flavors include azuki bean paste, green tea (matcha), "yuzu", strawberry and chestnut.  Nagoya is particularly famous for its "uirō", and there are other regional versions, notably in Yamaguchi and Odawara, although Odawara's uirō is better known as a medicine.  It can be purchased in traditional Japanese confectionery shops throughout Japan.

Southport Gates: The Southport Gates are three city gates in the British Overseas Territory of Gibraltar.  They are located in the Charles V Wall, one of the 16th century fortifications of Gibraltar.  The gates are clustered together, with the South Bastion to the west, and the Trafalgar Cemetery to the east.  The first and second Southport Gates were constructed at present day Trafalgar Road in 1552 and 1883, respectively.  The third gate, Referendum Gate, is the widest of the three and was constructed in 1967 at Main Street, immediately west of the first two gates.  The Southport Gates are listed with the Gibraltar Heritage Trust.

Warabe uta: Warabe uta (童歌 ) are traditional Japanese songs, similar to nursery rhymes.  They are often sung as part of traditional children's games.  They are described as a form of min'yo: traditional Japanese songs, usually sung without accompanying instruments.

Shrewsbury Library: Shrewsbury Library is housed in a Grade 1 listed building situated on Castle Gates near Shrewsbury Castle.  The site was the home of Shrewsbury School from 1550 until 1882.  The buildings were handed over to the town in 1882 and a free library and museum were opened by The Corporation of Shrewsbury on the site in 1885.  The library was moved temporarily to Raven Meadows in 1976 while the site on Castle Gates underwent extensive restorations.  The library was re-opened in 1983 by Princess Margaret.

Iha Castle: Iha Castle (伊波城 , Iha jō ) is a Ryukyuan "gusuku" in Uruma, Okinawa.  It sits on a cliff that separates Iha from Ishikawa, with a grand view of the Ishikawa Isthmus.  The castle is in ruins, with nothing left of the original structures save the walls.  There are also multiple Ryukyuan shrines in the bailey.  Based on artifacts found in and around the castle, it has been estimated to have been in use around the 13th to 15th centuries.  The Okinawa Prefectural government erected a stone Torii in front of one of the castle gates, along with a plaque describing it.

Tōsha Roei: Tōsha Roei (藤舎呂英 ) (born 1966) is a Japanese percussionist in the tradition of traditional Japanese drama and dance.  A member of the Tōsha school or lineage of musicians, he is classically trained in performing percussion for the Noh theatre, but performs in a wider variety of contexts.  He is a founding member of the Tricycle, a group which brings together musicians and performers from a variety of traditional Japanese forms.

Takuan: Takuan (Japanese: 沢庵 , also spelled takuwan) or takuan-zuke (沢庵漬け ), known as danmuji (단무지 ) in Korean cuisine context, is pickled daikon radish.  It is a popular traditional Japanese food.  Takuan is often served alongside other types of "tsukemono" in traditional Japanese cuisine.  It is also enjoyed at the end of meals as it is thought to aid digestion.

Lohari Gate, Lahore: The Lohari Gate (Urdu: لوہاری گیٹ‎ ), frequently mispronounce as Lahori Gate, is located within Walled City of Lahore in Pakistan.  Lohari Gate is one of the 13 gates of the Walled City of Lahore.  Being one of the oldest gates of the old city, Lohari Gate is also known as Lohari gate.  According to some historians, the original (old) city of Lahore was originally located near Ichhra, and this gate opened towards that side.  The name also traces back its roots to the language of Urdu, in which, “Lohar” means Blacksmith.  This could also be another reason behind naming it this way.  However, there are no concrete evidences available that blacksmiths used to live or work here.

Supporting paragraphs: Iha Castle Torii
Answer: Torii