text: doc1 = "Breakthrough drug for Schizophernia"
  doc2 = "New Schizophernia drug"
  doc3 = "New approach for treatment of Schizophernia"
  doc4 = "New hopes for Schizophernia patients"
  doc = [doc1,doc2,doc3,doc4]
  
  data1 = []
  data2 = []
  data3 = []
  data4 = []
  data1 = doc1.split()
  data2 = doc2.split()
  data3 = doc3.split()
  data4 = doc4.split()
  
  allData = data1 + data2 + data3 + data4
  test_list = list(set(allData))
  	print(test_list)
  	n = len(test_list)
  	k=[]
  
  for x in test_list:
  for i in range(len(doc)):
  
  	if x in doc[i]:
  		k.append(1)
  	else:
  		k.append(0)
  
  	matrix = [ k[i:i+4] for i in range(0,len(k),4) ]
  
  for l in matrix:
  print(l)
  