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

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

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