//Author: Kevin
#include<bits/stdc++.h>
//#pragma GCC optimize("O2")
using namespace std;
#define ll long long
#define ull unsigned ll
#define pb emplace_back
#define mp make_pair
#define ALL(x) (x).begin(),(x).end()
#define rALL(x) (x).rbegin(),(x).rend()
#define srt(x) sort(ALL(x))
#define rev(x) reverse(ALL(x))
#define rsrt(x) sort(rALL(x))
#define sz(x) (int)(x.size())
#define inf 0x3f3f3f3f
#define pii pair<int,int>
#define lb(v,x) (int)(lower_bound(ALL(v),x)-v.begin())
#define ub(v,x) (int)(upper_bound(ALL(v),x)-v.begin())
#define uni(v) v.resize(unique(ALL(v))-v.begin())
#define longer __int128_t
void die(string S){puts(S.c_str());exit(0);}
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int t;
	cin>>t;
	while(t--)
	{
		string s;
		cin>>s;
		for(auto &ch:s)
		{
			if(ch==')') ch='(';
			if(ch==']') ch='[';
		}
		bool flag=1;
		if(sz(s)%4)
		{
			for(int i=0;i<sz(s)/2;i++)
				if(s[i]!=s[sz(s)/2+i])
					flag=0;
		}
		else
		{
			for(int i=0;i<sz(s)/2;i++)
				if(s[i]==s[sz(s)/2+i])
					flag=0;
		}
		int c=0;
		for(int i=0;i<sz(s)/2;i++)
			if(s[i]=='(')
				c++;
			else
				c--;
		if(abs(c)>2) flag=0;
		for(int i=0;i<sz(s)/2-2;i++)
			if(s[i]==s[i+1]&&s[i+1]==s[i+2])
				flag=0;
		int cnt=0;
		for(int i=0;i<sz(s)/2-1;i++)
			if(s[i]==s[i+1])
				cnt++;
		if(cnt>1) flag=0;
		if(flag)
			cout<<"Yes\n";
		else
			cout<<"No\n";
	}
	return 0;
}