root: root
The root relation is used between the fake node ROOT (which is not represented explicitly in the CoNLL-U) at index 0, and the root of the sentence which is being analyzed. There should only be one node with the root dependency relation in every tree.
# visual-style 1 2 root color:blue
# visual-style 2 bgColor:blue
# visual-style 2 fgColor:white
# visual-style 1 bgColor:blue
# visual-style 1 fgColor:white
1 ROOT _ _ _ _ 0 _ _ _
2 thank thank VERB VERB _ 1 root _ _
3 you you PRON PRON _ 2 obj _ _
4 very very ADV ADV _ 5 advmod _ _
5 much much ADV ADV _ 2 advmod _ _
root in other languages: [bej] [bm] [cop] [cs] [el] [en] [es] [fi] [fr] [ga] [hy] [it] [ka] [kk] [ky] [no] [pcm] [pt] [qpm] [ro] [ru] [sl] [ssp] [sv] [swl] [tr] [u] [xcl] [yue] [zh]