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:
Como especies dadoras se han utilizado metales alcalinos, aminas, alquenos ricos en electrones, heterociclos o moléculas aromáticas; entre las especies aceptoras, tomos de halógeno, quinonas, alquenos deficientes de electrones, heterociclos o moléculas aromáticas, han sido los más estudiados.
Postion	Tokenization
1	Como
2	especies
3	dadoras
4	se
5	han
6	utilizado
7	metales
8	alcalinos
9	,
10	aminas
11	,
12	alquenos
13	ricos
14	en
15	electrones
16	,
17	heterociclos
18	o
19	moléculas
20	aromáticas
21	;
22	entre
23	las
24	especies
25	aceptoras
26	,
27	tomos
28	de
29	halógeno
30	,
31	quinonas
32	,
33	alquenos
34	deficientes
35	de
36	electrones
37	,
38	heterociclos
39	o
40	moléculas
41	aromáticas
42	,
43	han
44	sido
45	los
46	más
47	estudiados
48	.
Position	Tokenization	UPOS	Head	Deprel
1	Como	SCONJ	2	mark
2	especies	NOUN	6	obl
3	dadoras	ADJ	2	amod
4	se	PRON	6	expl:pass
5	han	AUX	6	aux
6	utilizado	VERB	0	root
7	metales	NOUN	6	nsubj
8	alcalinos	ADJ	7	amod
9	,	PUNCT	10	punct
10	aminas	NOUN	7	conj
11	,	PUNCT	12	punct
12	alquenos	NOUN	7	conj
13	ricos	ADJ	12	amod
14	en	ADP	15	case
15	electrones	NOUN	13	nmod
16	,	PUNCT	17	punct
17	heterociclos	NOUN	7	conj
18	o	CCONJ	19	cc
19	moléculas	NOUN	7	conj
20	aromáticas	ADJ	19	amod
21	;	PUNCT	6	punct
22	entre	ADP	24	case
23	las	DET	24	det
24	especies	NOUN	47	obl
25	aceptoras	ADJ	24	amod
26	,	PUNCT	24	punct
27	tomos	NOUN	47	nsubj
28	de	ADP	29	case
29	halógeno	NOUN	27	nmod
30	,	PUNCT	31	punct
31	quinonas	NOUN	27	conj
32	,	PUNCT	33	punct
33	alquenos	NOUN	27	conj
34	deficientes	ADJ	33	amod
35	de	ADP	36	case
36	electrones	NOUN	34	nmod
37	,	PUNCT	38	punct
38	heterociclos	NOUN	27	conj
39	o	CCONJ	40	cc
40	moléculas	NOUN	27	conj
41	aromáticas	ADJ	40	amod
42	,	PUNCT	27	punct
43	han	AUX	47	aux
44	sido	AUX	47	cop
45	los	DET	47	det
46	más	ADV	47	advmod
47	estudiados	ADJ	6	advcl
48	.	PUNCT	6	punct