The color map in this comic E uses five colors, but the Four Color Theorem says only four should be necessary. REGIONAL TERMS FOR CARBONATED BEVERAGES FANTA- CANADIAN ALE [NO WORD FOR THEM] SUGAR SODE- ICHOR MOUTHWATER HYDRO MILK SPICEWATER MEAD REFILL KID'S HARVARD COFFEE TEA FIZZ AETHER BUBBLER TRUE YOU-KNOW- OOZE WATER WHAT TICKLE JUICE CAPRI MEDICINE MOUTHBUZZ BRAD'S ELIXIR CRYPTO - SOFTIE PUNCH BUBBLE HONEY BROTH -HOT WATER YUM- TAB - FLUID OHIO FUN WINE SUGAR OIL REGULAR SPARKLE FLUID COKE ZERO TEA TANG KING COLA DIET THE WET FOOL'S CHAMPAGNE DRINK FORMULA .-PEPSI -CARBO BOAT DRINK SKIM CODE ~GLUG CRYSTAL CARBONATED SHAKE PEPSI RED BEVERAGE QUICKSILVER - WATER PLUS 2 MELT Using the map below (or by making your own graph or map), show that only four colors are necessary