text: Yo, check it out, I got a story to tell
  'Bout gastric cancer in Shenqiu County, China, dwell
  Spatial analysis, we went deep in the zone
  Examining the environment, effects that were shown
  
  We analyzed the data, mortality rates
  Gastric cancer, the focus, no time to hesitate
  At different scales, we studied the trends
  Environmental factors, the road to amends
  
  We found the grid, 2 by 2 kilometers squared
  Optimal level, the highest Moran's I declared
  With I at 0.68, p-value less than 0.01
  The characterizing of GCM, we had just begun
  
  We identified three regions, clusters so clear
  GCM had an impact, it was crystal clear
  Topography, farmland, population density too
  And river density, factors that made it true
  
  GCM was associated, negative correlation with land
  Positive with people and rivers, you understand?
  Spatial grid technique, it's the way to go
  Characterizing GCM, Shenqiu County's show
  
  So let's not limit preventive measures in a box
  Extend it to surrounding areas, break the locks
  Controlling the environment, the key to fight
  Malignant neoplasm, let's shine a light