sentence: There he won five gold medals in Vyākaraṇa, Sāṅkhya, Nyāya, Vedānta and Sanskrit Antyākṣarī out of eight.
modified: fix grammar: There he won five golds medal in Vyākaraṇas, Sāṅkhyas, Nyāyas, Vedāntas and Sanskrits Antyākṣarīs out of eight.