user: Provide for me, in a bulleted list, seven sports that have been removed from the Olympics

assistant: Here are seven sports that were once Olympic sports but have since been removed:
- One Hand Weightlifting
- Croquet
- Tug-of-war
- Duelling Pistol
- Ice Hockey
- Rope Climb 
- Standing High Jump

user: How many maharatna companies are there in India?

assistant: 11(eleven), the 11th is  Power Finance Corporation

user: Jot down some important points about optical illusion from the given passage.

assistant: 1. Visual Illusion is caused by the visual system and characterized by a visual percept that appears
to be different from reality.
2. According to Richard Gregory a classification proposed by him is useful as an orientation that,
there are three main classes: physical, physiological, and cognitive illusions, and in each class
there are four kinds: Ambiguities, distortions, paradoxes, and fictions.
3. An example for a physical distortion would be the apparent bending of a stick half immerged in
water; an example for a physiological paradox is the motion aftereffect (where, despite
movement, position remains unchanged). 
4. An example for a physiological fiction is an afterimage
5. Three cognitive distortions are the  Ponzo , Poggendorff, and Müller-Lyer illusion.
6. Physical illusions are caused by the physical environment, e.g. by the optical properties of
water. Physiological illusions arise in the eye or the visual pathway.
7. The most widely know illusion is visual illusions which are the result of unconscious inferences.