Concept:Identifying vibhaktis (case endings) in Telugu sentences based on their suffixes and meanings.Explanation:Let's break down the sentence 'నింగిలోని చందురుని చూసి సంతోషించాను' to find the vibhaktis.1. Consider the word 'నింగిలోని'. This word means 'within the sky' or 'of the sky'. The suffix '-లోని' implies possession or location within. In Telugu grammar, suffixes like 'యొక్క', 'లోన్', 'లోపలన్', 'కిన్', 'కున్' are associated with the Shashti vibhakti (genitive case), which denotes possession or relation.2. Now consider the word 'చందురుని'. This word means 'the moon'. The suffix '-ని' is present here. The suffixes 'ను', 'నున్', 'నిన్', 'లన్', 'కూర్చి', 'గురించి' are associated with the Dwitiya vibhakti (accusative case), which often indicates the object of an action.Therefore, 'నింగిలోని' belongs to Shashti vibhakti, and 'చందురుని' belongs to Dwitiya vibhakti.Answer:షష్ఠీ, ద్వితీయా