Table: iranian presidential election
Question: How many times has a candidate won by a large margin of over 80% of the vote in Iranian presidential elections?
Step 1 (Operation, Indexing): percentage of vote
Step 2 (Operation, Filter): if percentage of vote is larger than 80%
Step 3 (Reasoning, Grounding): large margin, large percentage of vote
Step 4 (Reasoning, Aggregating): COUNT, number of times where percentage of vote is larger than 80%
Answer: 4