Then add the other mate.
1	Then	then	ADV	RB	PronType=Dem	2	advmod	2:advmod	_
2	add	add	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	0:root	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	5:det	_
4	other	other	ADJ	JJ	Degree=Pos	5	amod	5:amod	_
5	mate	mate	NOUN	NN	Number=Sing	2	obj	2:obj	SpaceAfter=No
6	.	.	PUNCT	.	_	2	punct	2:punct	_
