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:
Skupina amerických vědců, kteří se zabývají reprodukcí, zjistila, že i když jsou odpůrci potratů stále aktivnější, světový trend směřuje k liberalizaci umělého přerušení těhotenství.
Postion	Tokenization
1	Skupina
2	amerických
3	vědců
4	,
5	kteří
6	se
7	zabývají
8	reprodukcí
9	,
10	zjistila
11	,
12	že
13	i
14	když
15	jsou
16	odpůrci
17	potratů
18	stále
19	aktivnější
20	,
21	světový
22	trend
23	směřuje
24	k
25	liberalizaci
26	umělého
27	přerušení
28	těhotenství
29	.
Position	Tokenization	UPOS	Head	Deprel
1	Skupina	NOUN	10	nsubj
2	amerických	ADJ	3	amod
3	vědců	NOUN	1	nmod
4	,	PUNCT	7	punct
5	kteří	DET	7	nsubj
6	se	PRON	7	expl:pv
7	zabývají	VERB	3	acl:relcl
8	reprodukcí	NOUN	7	obl:arg
9	,	PUNCT	7	punct
10	zjistila	VERB	0	root
11	,	PUNCT	23	punct
12	že	SCONJ	23	mark
13	i	CCONJ	19	mark
14	když	SCONJ	13	fixed
15	jsou	AUX	19	cop
16	odpůrci	NOUN	19	nsubj
17	potratů	NOUN	16	nmod
18	stále	ADV	19	advmod
19	aktivnější	ADJ	23	advcl
20	,	PUNCT	19	punct
21	světový	ADJ	22	amod
22	trend	NOUN	23	nsubj
23	směřuje	VERB	10	ccomp
24	k	ADP	25	case
25	liberalizaci	NOUN	23	obl
26	umělého	ADJ	27	amod
27	přerušení	NOUN	25	nmod
28	těhotenství	NOUN	27	nmod
29	.	PUNCT	10	punct