function Main(input) {
  var S = ""
  var is = input.split("\n");
  for (var i=0;i<parseInt(is[0]);i++){
    var q = is[1+i];
    if (q[0] == "1"){
      S += q[2];
    } else {
      S = S.slice(0,S.length-1);
    }
    try{
      eval(S.replaceAll("(|)","0").replaceAll("|","+"));
      console.log(S.includes("|") ? "Yes" : "No")
    }catch{
      console.log("No")
    }
  }
}

Main(require("fs").readFileSync("/dev/stdin", "utf8"));