*SUPPORT*
IN: zup fep OUT: YELLOW YELLOW YELLOW
IN: wif OUT: GREEN
IN: wif zup kiki dax OUT: RED GREEN YELLOW
IN: zup zup dax dax fep OUT: YELLOW YELLOW RED RED RED RED
IN: tufa OUT: BLUE
IN: dax blicket kiki tufa fep OUT: BLUE BLUE BLUE RED RED RED
IN: dax OUT: RED
IN: dax zup OUT: RED YELLOW
IN: wif wif fep OUT: GREEN GREEN GREEN GREEN
IN: dax fep kiki zup OUT: YELLOW RED RED RED
IN: zup OUT: YELLOW
IN: wif zup OUT: GREEN YELLOW
IN: wif wif blicket OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: tufa fep OUT: BLUE BLUE BLUE

*QUERY*
IN: wif dax OUT: GREEN RED
IN: dax kiki tufa dax kiki tufa fep OUT: BLUE BLUE BLUE BLUE RED RED
IN: wif fep OUT: GREEN GREEN GREEN
IN: tufa fep kiki wif OUT: GREEN BLUE BLUE BLUE
IN: dax wif blicket OUT: RED GREEN RED GREEN RED GREEN
IN: wif blicket OUT: GREEN GREEN GREEN
IN: tufa wif fep OUT: BLUE GREEN GREEN GREEN
IN: dax wif fep OUT: RED GREEN GREEN GREEN
IN: dax kiki zup blicket OUT: YELLOW YELLOW YELLOW RED
IN: dax wif kiki tufa wif fep kiki wif OUT: GREEN BLUE GREEN GREEN GREEN RED GREEN

*GRAMMAR*
zup -> YELLOW 
 wif -> GREEN 
 tufa -> BLUE 
 dax -> RED 
 u1 fep -> [u1] [u1] [u1] 
 x1 kiki x2 -> [x2] [x1] 
 x1 blicket -> [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 