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

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

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