#define _USE_MATH_DEFINES
#define INF 0x3f3f3f3f
#include <cstdio>
#include <iostream>
#include <sstream>
#include <cmath>
#include <cstdlib>
#include <algorithm>
#include <queue>
#include <stack>
#include <limits>
#include <map>
#include <string>
#include <cstring>
#include <set>
#include <deque>
#include <bitset>
#include <list>
#include <cctype>
#include <utility>
 
using namespace std;
 
typedef long long ll;
typedef pair <int,int> P;
typedef pair <int,P > PP;
 
int tx[] = {0,1,0,-1};
int ty[] = {-1,0,1,0};
 
static const double EPS = 1e-8;

class Cell {
public:
  int parent;
  int brother;
  bool has_child;

  int water;
  int capacity;
  int height;
  int start_x;
  int end_x;
  Cell(int _h,int _sx,int _ex) : height(_h),start_x(_sx),end_x(_ex),
				 parent(-1),brother(-1),water(0),has_child(false){
    capacity = height * (end_x - start_x) * 30;
  }

  void pour_water(int _water){
    water += _water;
  }

  double compute_water_level(){
    return (double)water / ((double)(end_x - start_x) * 30.0);
  }
  bool is_filled(){
    return (capacity <= water);
  }

  bool operator<(const Cell& c) const{
    return start_x < c.start_x;
  }
  bool operator<(const int _x) const{
    return start_x < _x;
  }
};

struct Board{
  int x;
  int height;
  Board(int _x,int _h) : x(_x), height(_h) {}
  bool operator<(const Board& b) const{
    return x < b.x;
  }
  bool operator>(const Board& b) const{
    return x > b.x;
  }
};

struct Faucet{
  int x;
  int cm3_per_second;
  Faucet(int _x,int _c) : x(_x), cm3_per_second(_c) {}
  Faucet() : x(0), cm3_per_second(0) {}

  bool operator <(const Faucet& f) const{
    return (x < f.x);
  }

  bool operator >(const Faucet& f) const{
    return (x > f.x);
  }
  bool operator ==(const Faucet& f) const{
    return (x == f.x);
  }

  bool operator <(const int _x) const{
    return (x < _x);
  }
  bool operator >(const int _x) const{
    return (x > _x);
  }
  bool operator ==(const int _x) const{
    return (x == _x);
  }
};

int main(){
  int total_data_sets;
  while(~scanf("%d",&total_data_sets)){
    for(int data_set_idx = 0; data_set_idx < total_data_sets; data_set_idx++){

      vector<Cell> cells;
      vector<Board> boards;
      int total_boards;
      scanf("%d",&total_boards);

      boards.push_back(Board(0,50));
      for(int board_idx = 0; board_idx < total_boards; board_idx++){
	int x,height;
	scanf("%d %d",&x,&height);
	boards.push_back(Board(x,height));
      }
      boards.push_back(Board(100,50));

      sort(boards.begin(),boards.end());
      for(int src_idx = 0; src_idx < boards.size(); src_idx++){
	if(boards[src_idx].x == 100) continue;

	for(int target_idx = src_idx+1; target_idx < boards.size(); target_idx++){
	  if(boards[target_idx].height < boards[src_idx].height) continue;

	  else if(boards[target_idx].height >= boards[src_idx].height){
	    cells.push_back(Cell(boards[src_idx].height,boards[src_idx].x,boards[target_idx].x));
	    break;
	  }
	}

	for(int target_idx = src_idx-1; target_idx >= 0; target_idx--){
	  if(boards[target_idx].height < boards[src_idx].height) continue;

	  else if(boards[target_idx].height > boards[src_idx].height){
	    cells.push_back(Cell(boards[src_idx].height,boards[target_idx].x,boards[src_idx].x));
	    break;
	  }
	}
      }

      //set brother
      for(int src_idx=0;src_idx<cells.size();src_idx++){
	int height = cells[src_idx].height;

	int target_wall[101];
	memset(target_wall,0,sizeof(target_wall));

	for(int target_idx = 0; target_idx < cells.size(); target_idx++){
	  if(target_idx == src_idx) continue;

	  if(cells[src_idx].end_x == cells[target_idx].start_x){
	    target_wall[cells[target_idx].start_x] = max(cells[target_idx].height,target_wall[cells[target_idx].start_x]);
	  }
	  if(cells[src_idx].start_x == cells[target_idx].end_x){
	    target_wall[cells[target_idx].end_x] = max(cells[target_idx].height,target_wall[cells[target_idx].end_x]);
	  }
	}

	int diff = INF;
	for(int target_idx = 0; target_idx < cells.size(); target_idx++){
	  if(src_idx == target_idx) continue;
	  if(cells[src_idx].end_x == cells[target_idx].start_x
	     && height == target_wall[cells[target_idx].start_x]
	     && diff > abs(cells[src_idx].end_x - cells[target_idx].end_x)){
	    diff = abs(cells[src_idx].end_x - cells[target_idx].end_x);
	    cells[src_idx].brother = target_idx;
	  }
	  if(cells[src_idx].start_x == cells[target_idx].end_x
	     && height == target_wall[cells[target_idx].end_x]
	     && diff > abs(cells[src_idx].start_x - cells[target_idx].start_x)){
	    diff = abs(cells[src_idx].start_x - cells[target_idx].start_x);
	    cells[src_idx].brother = target_idx;
	  }
	}
      }

      //set parent
      for(int src_idx=0;src_idx<cells.size();src_idx++){
	int min_height = INF;
	int lower_height = cells[src_idx].height;
	for(int target_idx = 0; target_idx < cells.size(); target_idx++){
	  if(src_idx == target_idx) continue;

	  if(cells[src_idx].start_x >= cells[target_idx].start_x
	     && cells[src_idx].end_x <= cells[target_idx].end_x
	     && lower_height <= cells[target_idx].height
	     && min_height > cells[target_idx].height){
	    min_height = cells[target_idx].height;
	    cells[src_idx].parent = target_idx;
	  }
	}

	if(cells[src_idx].parent != -1){
	  cells[cells[src_idx].parent].has_child = true;
	}
      }


      vector<Faucet> faucets;
      int total_faucets;
      scanf("%d",&total_faucets);
      for(int foucet_idx = 0; foucet_idx < total_faucets; foucet_idx++){
	int x,cm3_per_second;
	scanf("%d %d",&x,&cm3_per_second);
	faucets.push_back(Faucet(x,cm3_per_second));
      }

      sort(faucets.begin(),faucets.end());


      int total_observation_times;
      scanf("%d",&total_observation_times);

      vector<Cell> store = cells;
      for(int observation_time_idx = 0; observation_time_idx < total_observation_times; observation_time_idx++){
	int x,time;
	scanf("%d %d",&x,&time);
	
	for(int cell_idx = 0;cell_idx < cells.size(); cell_idx++){
	  for(int faucet_idx = 0; faucet_idx < faucets.size();faucet_idx++){
	    if(faucet_idx == faucets.size()) continue;
	    if(faucets[faucet_idx].x < cells[cell_idx].start_x) continue;
	    if(faucets[faucet_idx].x > cells[cell_idx].end_x) continue;
	    if(cells[cell_idx].has_child) continue;
	    
	    cells[cell_idx].pour_water(faucets[faucet_idx].cm3_per_second * time);
	  }
	}


	bool is_erased[1001];
	memset(is_erased,false,sizeof(is_erased));

	for(int round=0;round<1000;round++){
	  for(int src_idx = 0;src_idx < cells.size(); src_idx++){
	    if(is_erased[src_idx]) continue;
	    if(!cells[src_idx].is_filled()) continue;

	    int freq[1001];
	    memset(freq,0,sizeof(freq));

	    int limit = cells.size() * 3;
	    int cell_idx = src_idx;

	    bool isok = true;
	    while(limit-- > 0){
	      if(!cells[cell_idx].is_filled()) break;

	      freq[cell_idx]++;
	      if(freq[cell_idx] >= 3) isok = false;
	      int brother = cells[cell_idx].brother;
	      if(brother == -1) break;
	      cells[brother].water += (cells[cell_idx].water - cells[cell_idx].capacity);
	      cells[cell_idx].water = cells[cell_idx].capacity;
	      cell_idx = brother;
	    }
	    
	    if(isok) continue;

	    int sx = INF;
	    int ex = 0;
	    int water = 0;

	    for(int cell_idx = 0;cell_idx < cells.size(); cell_idx++){
	      if(is_erased[cell_idx]) continue;

	      if(freq[cell_idx] >= 3){
		sx = min(sx,cells[cell_idx].start_x);
		ex = max(ex,cells[cell_idx].end_x);
		water += cells[cell_idx].water;
		cells[cell_idx].water = 0;
		is_erased[cell_idx] = true;
	      }
	    }
	    
	    int new_cell_idx = 0;
	    for(int cell_idx = 0;cell_idx < cells.size(); cell_idx++){
	      if(is_erased[cell_idx]) continue;
	      
	      if(sx == cells[cell_idx].start_x 
		 && ex == cells[cell_idx].end_x){

		cells[cell_idx].water = water;
		new_cell_idx = cell_idx;

		break;
	      }
	    }
	    
	    for(int cell_idx = 0;cell_idx < cells.size(); cell_idx++){
	      if(is_erased[cell_idx]) continue;
	      if(cells[cell_idx].brother != -1
		 &&is_erased[cells[cell_idx].brother]){
		cells[cell_idx].brother = new_cell_idx;
	      }
	    }
	  }
	}

	double res= 0.0;
	for(int cell_idx = 0;cell_idx < cells.size(); cell_idx++){
	  if(cells[cell_idx].start_x <= x && x <= cells[cell_idx].end_x){
	    res = max(cells[cell_idx].compute_water_level(),res);
	  }
	}
	printf("%lf\n",res >= 50.0 ? 50.0 : res);
	cells = store;
      }
    }
  }
}

Measured memory_bytes: 1228