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:
In the last decade, there has been a real and significant increase in childhood and, to a certain extent, adult carcinoma of the thyroid in contaminated regions of the former Soviet Union (Wi940) which should be attributed to the Chernobyl accident until proven otherwise.
Postion	Tokenization
1	In
2	the
3	last
4	decade
5	,
6	there
7	has
8	been
9	a
10	real
11	and
12	significant
13	increase
14	in
15	childhood
16	and
17	,
18	to
19	a
20	certain
21	extent
22	,
23	adult
24	carcinoma
25	of
26	the
27	thyroid
28	in
29	contaminated
30	regions
31	of
32	the
33	former
34	Soviet
35	Union
36	(
37	Wi940
38	)
39	which
40	should
41	be
42	attributed
43	to
44	the
45	Chernobyl
46	accident
47	until
48	proven
49	otherwise
50	.
Position	Tokenization	UPOS	Head	Deprel
1	In	ADP	4	case
2	the	DET	4	det
3	last	ADJ	4	amod
4	decade	NOUN	13	nmod
5	,	PUNCT	8	punct
6	there	PRON	8	expl
7	has	AUX	8	aux
8	been	VERB	0	root
9	a	DET	13	det
10	real	ADJ	13	amod
11	and	CCONJ	12	cc
12	significant	ADJ	10	conj
13	increase	NOUN	8	nsubj
14	in	ADP	24	case
15	childhood	NOUN	24	compound
16	and	CCONJ	23	cc
17	,	PUNCT	23	punct
18	to	ADP	21	case
19	a	DET	21	det
20	certain	ADJ	21	amod
21	extent	NOUN	23	nmod
22	,	PUNCT	23	punct
23	adult	NOUN	15	conj
24	carcinoma	NOUN	13	nmod
25	of	ADP	27	case
26	the	DET	27	det
27	thyroid	NOUN	24	nmod
28	in	ADP	30	case
29	contaminated	VERB	30	amod
30	regions	NOUN	13	nmod
31	of	ADP	35	case
32	the	DET	35	det
33	former	ADJ	35	amod
34	Soviet	PROPN	35	compound
35	Union	PROPN	30	nmod
36	(	PUNCT	37	punct
37	Wi940	PROPN	30	appos
38	)	PUNCT	37	punct
39	which	PRON	42	nsubj:pass
40	should	AUX	42	aux
41	be	AUX	42	aux:pass
42	attributed	VERB	13	acl:relcl
43	to	ADP	46	case
44	the	DET	46	det
45	Chernobyl	PROPN	46	compound
46	accident	NOUN	42	obl
47	until	SCONJ	48	mark
48	proven	VERB	42	advcl
49	otherwise	ADV	48	xcomp
50	.	PUNCT	8	punct