sevens
b is 7" taller than g. the beautiful and talented alisa is 7" taller than b. i am 7" taller than alisa. our family is colinear. possibly for the only time in our lives. though it could happen again. the most likely time would be if i was 3.5" taller than b who is 3.5" taller than alisa who is 3.5" taller than g. we'll just have to wait and see.