*SUPPORT*
IN: wif kiki blicket OUT: RED BLUE BLUE
IN: tufa fep wif OUT: GREEN BLUE
IN: tufa tufa wif dax fep wif OUT: GREEN GREEN BLUE PINK BLUE
IN: blicket fep dax OUT: RED PINK
IN: blicket lug OUT: RED RED
IN: blicket OUT: RED
IN: tufa lug OUT: GREEN GREEN
IN: tufa fep dax OUT: GREEN PINK
IN: tufa OUT: GREEN
IN: dax lug OUT: PINK PINK
IN: wif fep wif OUT: BLUE BLUE
IN: blicket blicket tufa OUT: RED RED GREEN
IN: dax OUT: PINK
IN: blicket fep wif OUT: RED BLUE

*QUERY*
IN: wif lug OUT: BLUE BLUE
IN: blicket wif wif fep dax OUT: RED BLUE BLUE PINK
IN: wif fep tufa OUT: BLUE GREEN
IN: wif fep blicket OUT: BLUE RED
IN: dax fep blicket OUT: PINK RED
IN: dax tufa lug OUT: PINK GREEN GREEN
IN: wif OUT: BLUE
IN: tufa fep blicket kiki blicket wif OUT: RED BLUE GREEN RED GREEN RED
IN: dax fep dax kiki tufa fep tufa OUT: GREEN GREEN PINK PINK PINK PINK
IN: wif dax lug kiki tufa lug OUT: GREEN GREEN BLUE PINK PINK BLUE PINK PINK

*GRAMMAR*
blicket -> RED 
 dax -> PINK 
 wif -> BLUE 
 tufa -> GREEN 
 x1 kiki x2 -> [x2] [x1] [x1] 
 u1 fep u2 -> [u1] [u2] 
 u1 lug -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 