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

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

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