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: Čistka mezi vedoucími osobnostmi jihoafrické policie a zavedení kontrolní skupiny převážně civilních osob, která bude dohlížet na činnost policie, je jedním z důležitých kroků vlády jihoafrického prezidenta de Klerka na cestě k demokratické Jižní Africe.
Position	Tokenization	UPOS	Head	Deprel
1	Čistka	NOUN	23	nsubj
2	mezi	ADP	4	case
3	vedoucími	ADJ	4	amod
4	osobnostmi	NOUN	1	nmod
5	jihoafrické	ADJ	6	amod
6	policie	NOUN	4	nmod
7	a	CCONJ	8	cc
8	zavedení	NOUN	1	conj
9	kontrolní	ADJ	10	amod
10	skupiny	NOUN	8	nmod
11	převážně	ADV	12	advmod
12	civilních	ADJ	13	amod
13	osob	NOUN	10	nmod
14	,	PUNCT	17	punct
15	která	DET	17	nsubj
16	bude	AUX	17	aux
17	dohlížet	VERB	10	acl:relcl
18	na	ADP	19	case
19	činnost	NOUN	17	obl:arg
20	policie	NOUN	19	nmod
21	,	PUNCT	17	punct
22	je	AUX	23	cop
23	jedním	NUM	0	root
24	z	ADP	26	case
25	důležitých	ADJ	26	amod
26	kroků	NOUN	23	nmod
27	vlády	NOUN	26	nmod
28	jihoafrického	ADJ	29	amod
29	prezidenta	NOUN	27	nmod
30	de	ADP	29	flat
31	Klerka	PROPN	29	flat
32	na	ADP	33	case
33	cestě	NOUN	26	nmod
34	k	ADP	37	case
35	demokratické	ADJ	37	amod
36	Jižní	ADJ	37	amod
37	Africe	PROPN	33	nmod
38	.	PUNCT	23	punct