*SUPPORT*
IN: fep fep wif tufa blicket tufa OUT: RED PURPLE RED RED RED PURPLE
IN: lug OUT: YELLOW
IN: tufa wif gazzer blicket fep OUT: PURPLE GREEN GREEN GREEN RED
IN: tufa tufa wif tufa OUT: RED RED RED RED RED
IN: fep wif gazzer OUT: GREEN GREEN GREEN PURPLE
IN: fep OUT: PURPLE
IN: gazzer blicket gazzer OUT: GREEN GREEN
IN: fep wif lug OUT: YELLOW YELLOW YELLOW PURPLE
IN: fep blicket fep OUT: PURPLE PURPLE
IN: fep tufa wif lug OUT: PURPLE YELLOW YELLOW YELLOW RED
IN: tufa wif gazzer OUT: GREEN GREEN GREEN RED
IN: tufa wif lug OUT: YELLOW YELLOW YELLOW RED
IN: tufa gazzer zup gazzer OUT: RED GREEN GREEN
IN: fep tufa wif gazzer OUT: PURPLE GREEN GREEN GREEN RED

*QUERY*
IN: lug gazzer lug wif gazzer OUT: YELLOW GREEN GREEN GREEN GREEN YELLOW
IN: fep wif tufa OUT: RED RED RED PURPLE
IN: lug wif lug blicket tufa OUT: RED YELLOW YELLOW YELLOW YELLOW
IN: tufa OUT: RED
IN: gazzer OUT: GREEN
IN: fep zup tufa OUT: PURPLE RED
IN: lug tufa lug blicket gazzer OUT: GREEN YELLOW RED YELLOW
IN: tufa zup gazzer OUT: RED GREEN
IN: gazzer zup lug OUT: GREEN YELLOW
IN: fep blicket tufa blicket fep OUT: PURPLE RED PURPLE

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