*SUPPORT*
IN: lug tufa dax OUT: GREEN PINK
IN: fep kiki dax OUT: GREEN PURPLE
IN: lug lug OUT: PINK PINK
IN: dax kiki dax OUT: GREEN GREEN
IN: fep tufa dax OUT: GREEN PURPLE
IN: wif tufa dax OUT: GREEN YELLOW
IN: fep tufa wif OUT: YELLOW PURPLE
IN: lug kiki wif OUT: YELLOW PINK
IN: wif lug blicket OUT: YELLOW PINK PINK
IN: fep OUT: PURPLE
IN: dax kiki fep OUT: PURPLE GREEN
IN: lug tufa fep OUT: PURPLE PINK
IN: dax OUT: GREEN
IN: fep fep tufa dax OUT: PURPLE GREEN PURPLE

*QUERY*
IN: wif kiki wif OUT: YELLOW YELLOW
IN: dax kiki lug OUT: PINK GREEN
IN: lug blicket OUT: PINK PINK
IN: lug OUT: PINK
IN: wif tufa lug OUT: PINK YELLOW
IN: wif kiki lug OUT: PINK YELLOW
IN: dax blicket OUT: GREEN GREEN
IN: fep tufa lug OUT: PINK PURPLE
IN: wif blicket OUT: YELLOW YELLOW
IN: dax tufa lug OUT: PINK GREEN

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