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

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

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