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:
El evento había sido anunciado varias semanas antes, con breves espots en la RAI, la televisión pública, artículos de prensa y comentarios radiofónicos, como nunca se había visto.
Postion	Tokenization
1	El
2	evento
3	había
4	sido
5	anunciado
6	varias
7	semanas
8	antes
9	,
10	con
11	breves
12	espots
13	en
14	la
15	RAI
16	,
17	la
18	televisión
19	pública
20	,
21	artículos
22	de
23	prensa
24	y
25	comentarios
26	radiofónicos
27	,
28	como
29	nunca
30	se
31	había
32	visto
33	.
Position	Tokenization	UPOS	Head	Deprel
1	El	DET	2	det
2	evento	NOUN	5	nsubj
3	había	AUX	5	aux
4	sido	AUX	5	aux
5	anunciado	VERB	0	root
6	varias	DET	7	det
7	semanas	NOUN	8	obl
8	antes	ADV	5	advmod
9	,	PUNCT	12	punct
10	con	ADP	12	case
11	breves	ADJ	12	amod
12	espots	NOUN	5	obl
13	en	ADP	15	case
14	la	DET	15	det
15	RAI	PROPN	12	nmod
16	,	PUNCT	18	punct
17	la	DET	18	det
18	televisión	NOUN	15	appos
19	pública	ADJ	18	amod
20	,	PUNCT	21	punct
21	artículos	NOUN	12	conj
22	de	ADP	23	case
23	prensa	NOUN	21	nmod
24	y	CCONJ	25	cc
25	comentarios	NOUN	12	conj
26	radiofónicos	ADJ	25	amod
27	,	PUNCT	32	punct
28	como	SCONJ	32	mark
29	nunca	ADV	32	advmod
30	se	PRON	32	expl:impers
31	había	AUX	32	aux
32	visto	VERB	5	advcl
33	.	PUNCT	5	punct