At Hogwarts, there are four houses: `toSentence( HOUSES )`. The bar chart below shows the number of house points that each house received today.

How many house points did `HOUSES[ INDEX ]` receive?

var width = 5;
var height = 5;
init({
range: [ [ -1, width + 1 ], [ -1, height + 0.5 ] ]
});
var pos = { lx: 0, ly: 0, width: width, height: height};
graph.barchart = new BarChart( DATA, pos );
graph.barchart.draw();

Find the bar for `HOUSES[ INDEX ]` by looking at the letter under each bar.

graph.barchart.highlightDataPoint( INDEX );

Compare how tall the bar is with the numbers to the left.

graph.barchart.labelDataPoint( INDEX );

`HOUSES[ INDEX ]` received `plural( VALUES[ INDEX ], "house point" )`.