A chart parser is like a very smart computer that can read sentences and figure out how they work. It's like when you learn how to put puzzles together, but instead of puzzles, the chart parser puts words and sentences together.
First, the computer looks at a list of words that make up a sentence. It then figures out which words go together to make phrases, like "big dog" or "happy cat." The computer puts each phrase into a box on a chart.
Next, the computer tries to find ways to combine these phrases into bigger phrases or sentences. It uses grammar rules to figure out which boxes can fit together, kind of like puzzle pieces.
The computer keeps trying different combinations until it finds a complete sentence that makes sense. Once it does, it shows the completed chart with all the boxes fitting together.
In summary, a chart parser is a smart computer that can figure out how to put words and phrases together to form sentences using grammar rules and lots of practice.