As a helpful and smart assistant, your task is to parse a given text in any language to Universal Dependency (UD) format including POS tags and dependency relations (HEAD and DEPREL).
Key Components of UD Annotation:
1. Tokens: The fundamental units within UD are tokens. These can be individual words, punctuation marks, or even parts of multi-word expressions. Each token has several associated attributes.
2. UPOS Tags: The UPOS field in the CoNLL-U format represents the universal part-of-speech tag assigned to each word. This tag is part of a universal POS tag set designed to be applicable across different languages. The UPOS tags include categories such as NOUN, VERB, ADJ (adjective), ADV (adverb), PRON (pronoun), DET (determiner), and more. 
3. Dependency Relations: Dependency relations are the core of the syntactic representation. They form a tree structure over the tokens in a sentence. Here's how they work:
    - HEAD: This field indicates the head of the current word. The head is the word that the current word is connected to in the dependency parse tree. The value is an integer that corresponds to the ID of the head word within the same sentence. A value of zero (0) indicates that the word is the root of the sentence.
    - DEPREL: The DEPREL field specifies the type of dependency relation between the current word and its head (as specified in the HEAD field). The value is a universal dependency relation or a language-specific subtype of such a relation.
Note: Blank lines are used to mark the boundaries between sentences.
Example:
Let's analyze this sentence with its UD annotation:
"The big dog chased the cat."
1. Tokenization:
- The
- big
- dog
- chased
- the
- cat
- .
2. UPOS Tags:
- The: DET
- big: ADJ
- dog: NOUN
- chased: VERB
- the: DET
- cat: NOUN
- .: PUNCT
3. Head node (parent):
- The: the parent of this word is "dog" at position 3
- big: the parent of this word is "dog" at position 3
- dog: the parent of this word is "chased" at position 4
- chased: this is the root node, therefore its head is 0
- the: the parent of this word is "cat" at position 6
- cat: the parent of this word is "chased" at position 4
- .: the parent of this word is "chased" at position 4
3. Dependency Relations:
- root(ROOT, chased)
- det(dog, The)
- amod(dog, big)
- nsubj(chased, dog)
- det(cat, the)
- obj(chased, cat)
Combining the above annotations, the final output in UD format is:
Position	Tokenization	UPOS	Head	Deprel
1	The	DET	3	det
2	big	ADJ	3	amod
3	dog	NOUN	4	nsubj
4	chased	VERB	0	ROOT
5	the	DET	6	det
6	cat	NOUN	4	obj
7	.	PUNCT	4	punct
Generate UD annotations for the following tokenized text:
Además, el Convenio se refiere a la prestación de asistencia, dotación de los equipos de asistencia y el paso de éstos por las fronteras.
Postion	Tokenization
1	Además
2	,
3	el
4	Convenio
5	se
6	refiere
7	a
8	la
9	prestación
10	de
11	asistencia
12	,
13	dotación
14	de
15	los
16	equipos
17	de
18	asistencia
19	y
20	el
21	paso
22	de
23	éstos
24	por
25	las
26	fronteras
27	.
Position	Tokenization	UPOS	Head	Deprel
1	Además	ADV	6	advmod
2	,	PUNCT	1	punct
3	el	DET	4	det
4	Convenio	PROPN	6	nsubj
5	se	PRON	6	expl:pv
6	refiere	VERB	0	root
7	a	ADP	9	case
8	la	DET	9	det
9	prestación	NOUN	6	obj
10	de	ADP	11	case
11	asistencia	NOUN	9	nmod
12	,	PUNCT	13	punct
13	dotación	NOUN	9	appos
14	de	ADP	16	case
15	los	DET	16	det
16	equipos	NOUN	13	nmod
17	de	ADP	18	case
18	asistencia	NOUN	16	nmod
19	y	CCONJ	21	cc
20	el	DET	21	det
21	paso	NOUN	9	conj
22	de	ADP	23	case
23	éstos	PRON	21	nmod
24	por	ADP	26	case
25	las	DET	26	det
26	fronteras	NOUN	21	nmod
27	.	PUNCT	6	punct