premise: A street entertainer has six boxes stacked one on top of the other and numbered consecutively 1 through 6, from the lowest box up to the highest. Each box contains a single ball, and each ball is one of three colors—green, red, or white. Onlookers are to guess the color of each ball in each box, given that the following conditions hold: There are more red balls than white balls. There is a box containing a green ball that is lower in the stack than any box that contains a red ball. There is a white ball in a box that is immediately below a box that contains a green ball. If there are green balls in boxes 5 and 6, then which one of the following could be true?
hypothesis: There is a white ball in box 1.