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 text: Je to však Polsko, největší a nejlidnatější ze tří středoevropských zemí, které usilují o plné členství v Evropském společenství na počátku 21. století, kde došlo v několika posledních měsících k největším změnám.
Position	Tokenization	UPOS	Head	Deprel
1	Je	AUX	2	cop
2	to	DET	0	root
3	však	CCONJ	2	cc
4	Polsko	PROPN	2	nsubj
5	,	PUNCT	6	punct
6	největší	ADJ	4	amod
7	a	CCONJ	8	cc
8	nejlidnatější	ADJ	6	conj
9	ze	ADP	12	case
10	tří	NUM	12	nummod
11	středoevropských	ADJ	12	amod
12	zemí	NOUN	6	nmod
13	,	PUNCT	15	punct
14	které	DET	15	nsubj
15	usilují	VERB	12	acl:relcl
16	o	ADP	18	case
17	plné	ADJ	18	amod
18	členství	NOUN	15	obl:arg
19	v	ADP	21	case
20	Evropském	ADJ	21	amod
21	společenství	NOUN	18	nmod
22	na	ADP	23	case
23	počátku	NOUN	18	nmod
24	21	NUM	26	nummod
25	.	PUNCT	24	punct
26	století	NOUN	23	nmod
27	,	PUNCT	15	punct
28	kde	ADV	29	advmod
29	došlo	VERB	4	acl:relcl
30	v	ADP	33	case
31	několika	DET	33	det:nummod
32	posledních	ADJ	33	amod
33	měsících	NOUN	29	obl
34	k	ADP	36	case
35	největším	ADJ	36	amod
36	změnám	NOUN	29	obl:arg
37	.	PUNCT	2	punct