/*******************************************************************************************************You are given a string consisting of parentheses () and []. A string of this type is said to be correct:

(a)

if it is the empty string

(b)

if A and B are correct, AB is correct,

(c)

if A is correct, (A )

 and [A ] is correct.

Write a program that takes a sequence of strings of this type and check their correctness. Your program can assume that the maximum string length is 128.

Input 

The file contains a positive integer n and a sequence of n strings of parentheses () and [], one string a line.

A sequence of Yes

 or No on the output file.

3
([])
(([()])))
([()[]()])()

Yes
No
Yes

*******************************************************************************************************************/

#include<stdio.h>

#include<string.h>
int main()
{
    char q[300],w[300];
    int n,j,k,i;
    scanf("%d%*c",&n);
    for(i=0;i<n;i++)
    {
        memset(q,0,sizeof(q));
        gets(q);
        int len=strlen(q);
        for(k=0,j=0;j<len;j++)
        {
            if((q[j]==')' && w[k-1]=='(') || (q[j]==']' && w[k-1]=='['))
            {
                k--;
            }
            else
            {
                w[k]=q[j];
                k++;
            }
        }
        if(k==0)
            printf("Yes\n");
        else
            printf("No\n");
    }
    return 0;
}