*SUPPORT*
IN: wif lug dax lug OUT: GREEN GREEN PINK GREEN
IN: wif tufa blicket OUT: PINK RED PINK RED
IN: wif blicket dax gazzer OUT: YELLOW YELLOW PINK RED
IN: lug wif tufa lug OUT: GREEN PINK GREEN PINK GREEN
IN: blicket tufa blicket OUT: RED RED RED RED
IN: wif lug blicket OUT: PINK GREEN RED
IN: lug tufa gazzer OUT: GREEN YELLOW GREEN YELLOW
IN: gazzer tufa lug OUT: YELLOW GREEN YELLOW GREEN
IN: gazzer OUT: YELLOW
IN: wif OUT: PINK
IN: blicket OUT: RED
IN: wif tufa lug dax wif OUT: PINK PINK PINK GREEN PINK GREEN
IN: blicket blicket wif tufa blicket OUT: RED RED PINK RED PINK RED
IN: lug tufa lug OUT: GREEN GREEN GREEN GREEN

*QUERY*
IN: wif blicket OUT: PINK RED
IN: wif tufa gazzer OUT: PINK YELLOW PINK YELLOW
IN: gazzer wif OUT: YELLOW PINK
IN: gazzer tufa wif OUT: YELLOW PINK YELLOW PINK
IN: wif tufa lug dax lug dax wif OUT: PINK PINK GREEN GREEN PINK GREEN PINK GREEN
IN: gazzer lug tufa blicket dax wif OUT: PINK PINK YELLOW GREEN RED GREEN RED
IN: lug OUT: GREEN
IN: gazzer fep lug OUT: GREEN YELLOW GREEN GREEN
IN: gazzer blicket tufa wif OUT: YELLOW RED PINK RED PINK
IN: wif lug OUT: PINK GREEN

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