样例输入 1

5 
apple applee 
apple appe 
apple bpple 
applee bpple 
apple apple

样例输出1

similar 
similar 
similar 
not similar 
similar

样例输入2

6
apple app
apple appe
cpple bpple
applee bpple
bb a
a bb

样例输出2：

not similar
similar
similar
not similar
not similar
not similar