In the three given words "力心力", "力可打山" and "山洋水满", each Chinese character represents a number between 1 and 8, the same Chinese character represents the same number, and different Chinese characters represent different numbers, If the sum of the numbers represented by the Chinese characters of each word is 19, and "Jin" > "Shan" > "Li", then what is the maximum value of "Shui".
在三个给词语"尽心尽力"、"力可拔山"和"山穷水尽"中，每个汉字代表1至8之间的数字，相同的汉字代表相同的数字，不同的汉字代表不同的数字，如果每个词语的汉字所代表的数字之和都是19，且"尽"＞"山"＞"力"，则"水"最大等于多少．
<result>7</result>