Teacher:In this task, you will be given a passage to read. A fill in the blank question will be given to you.  Your answer should fit the blank appropriately.
Teacher: Now, understand the problem? Solve this instance:  The west wing , entered through the main cave , is in a semi @-@ ruined state . It has a small chapel and a cistern enclosed within the pillared cave , which is believed to be Buddhist . Another shrine to the west of the courtyard , with a portico , has carvings of Shiva in a yogic pose seated on a lotus carried by two fat , heavy , wigged figures . This carving also depicts a three @-@ faced bearded Bramha and several other figurines . Entering through the back door of the portico is a cave enshrined with a multifaceted Shiva Linga erected over roughly hewn salunkhs . At the door entrance on both flanks , statues of gatekeepers standing over demons and two fat , poised figures are seen . On the southern side of the door is an ensemble of a number of statues . Prominent among these is the Shiva carving , which is depicted with six arms and the third eye in the forehead . Though in a partly ruined state , the carving shows Shiva with an ornamented crown fixed with a crescent , seen carrying a cobra in the left hand , a club in another hand , and discerned to be in a dancing pose . Next to this image are a figure under a plantain tree and a Shiva image ( Yogishvara ) seated on a lotus . Also seen in the panel are a male figure riding a bull with a bell fastened to its neck , a female figure and another carving to left of Shiva , a female figure with a jewel on her forehead with neatly looped headdress , Indra riding an elephant , Vishnu with four arms , holding a discus in one of his left hands and riding on Garuda flanked by a small flying figure , and a male figure with crescent in his hair . fill in the blank  :   The west wing , entered through the main __________________ , is in a semi @-@ ruined state . 
Student:
 cave 