Finally:
Little buggers hiding in trees
lTIGERSearch and tgrep/tgrep2 use exactly the opposite syntax for dominance:
–Tgrep: A < B ‘A dominates B’
–TIGERSearch: A > B ‘A dominates B’
l
lTgrep is right-headed!
–The following pattern matches an S which has a child A and another child that is a C and that the A has a child B:
– S < (A < B) < C
–However, this pattern means that S has child A and that A has children B and C:
– S < ((A < B) < C)  equivalent to: S < (A < B < C)
l