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

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

*GRAMMAR*
kiki -> PURPLE 
 wif -> RED 
 zup -> YELLOW 
 fep -> GREEN 
 u1 blicket u2 -> [u2] [u1] 
 u1 dax -> [u1] [u1] 
 u1 tufa u2 -> [u1] [u2] [u1] [u2] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 