the difference between so she is and so is she

1.so is she.意思是"她也是这样" ,说的是另一个人.
比如Xiao Wang is a student.so is Xiao Li.(小王是学生,小李也是学生)
2.so she is.意思是"确实是这样",说的是同一个人.
比如这样一个对话:
A--:Xiao Wang is a student.(小王是一个学生.)
B--:so she is.(确实是这样.) 表示赞同或肯定A说的话