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:
Tras comprobar cómo los inmigrantes lanzaban una tarta a Barrera, que no le alcanzó, la policía formó un cordón entre éste y el grupo que le abucheaba, que intentaba seguirle en su recorrido por la Rambla.
Postion	Tokenization
1	Tras
2	comprobar
3	cómo
4	los
5	inmigrantes
6	lanzaban
7	una
8	tarta
9	a
10	Barrera
11	,
12	que
13	no
14	le
15	alcanzó
16	,
17	la
18	policía
19	formó
20	un
21	cordón
22	entre
23	éste
24	y
25	el
26	grupo
27	que
28	le
29	abucheaba
30	,
31	que
32	intentaba
33	seguirle
34	seguir
35	le
36	en
37	su
38	recorrido
39	por
40	la
41	Rambla
42	.
Position	Tokenization	UPOS	Head	Deprel
1	Tras	ADP	2	mark
2	comprobar	VERB	19	advcl
3	cómo	PRON	6	obl
4	los	DET	5	det
5	inmigrantes	NOUN	6	nsubj
6	lanzaban	VERB	2	ccomp
7	una	DET	8	det
8	tarta	NOUN	6	obj
9	a	ADP	10	case
10	Barrera	PROPN	6	obj
11	,	PUNCT	15	punct
12	que	PRON	15	nsubj
13	no	ADV	15	advmod
14	le	PRON	15	obj
15	alcanzó	VERB	6	advcl
16	,	PUNCT	15	punct
17	la	DET	18	det
18	policía	NOUN	19	nsubj
19	formó	VERB	0	root
20	un	DET	21	det
21	cordón	NOUN	19	obj
22	entre	ADP	23	case
23	éste	PRON	19	obl
24	y	CCONJ	26	cc
25	el	DET	26	det
26	grupo	NOUN	23	conj
27	que	PRON	29	nsubj
28	le	PRON	29	obj
29	abucheaba	VERB	26	acl
30	,	PUNCT	32	punct
31	que	PRON	32	nsubj
32	intentaba	VERB	26	acl
33	seguirle	_	None	_
34	seguir	VERB	32	xcomp
35	le	PRON	33	obj
36	en	ADP	37	case
37	su	DET	37	det
38	recorrido	NOUN	33	obl
39	por	ADP	40	case
40	la	DET	40	det
41	Rambla	PROPN	37	nmod
42	.	PUNCT	19	punct