user: Classify each of the numbers as prime or composite - 1, 2, 3, 10, 15

assistant: Modern mathematicians define a number as prime if it is divided by exactly two numbers. Since 1 can be divided by 1 and the number itself, which is also 1, so 1 is a prime number. By the same definition 2 and 3 are also prime numbers. Whereas, 10 and 15 are composite numbers as they can be divided by 4 numbers each. 10 can be divided by 1, 2, 5 and 10. 15 can be divided by 1, 3, 5 and 15.

user: What is the difference between a guitar and a ukulele?

assistant: While a ukulele might be thought of as a small guitar, there are actually numerous differences between the two instruments:
1. A ukulele has 4 strings while a guitar has 6 strings or sometimes 12
2. A ukulele's 4 strings are tuned differently from any consecutive series of a guitar's 4 strings

user: Extract the most visited countries in Africa and list them using bullets in the format {Country} - {International tourist arrivals (2019)}

assistant: <think>
The World Tourism rankings are compiled by the United Nations World Tourism Organization as part of their World Tourism Barometer publication, which is released up to six times per year. In the publication, destinations are ranked by the number of international visitor arrivals, by the revenue generated by inbound tourism, and by the expenditure of outbound travelers.

Most visited destinations by international tourist arrivals
In 2019 there were 1.459 billion international tourist arrivals worldwide, with a growth of 3.7% as compared to 2018. The top 10 international tourism destinations in 2019 were:

Rank	Destination	International
tourist
arrivals
(2019)	International
tourist
arrivals
(2018)	Change
(2018 to
2019)
(%)	Change
(2017 to
2018)
(%)
1	 France	–	89.4 million	-	Increase 2.9
2	 Spain	83.5 million	82.8 million	Increase 0.8	Increase 1.1
3	 United States	79.3 million	79.7 million	Decrease 0.6	Increase 3.3
4	 China	65.7 million	62.9 million	Increase 4.5	Increase 3.6
5	 Italy	64.5 million	61.6 million	Increase 4.8	Increase 5.7
6	 Turkey	51.2 million	45.8 million	Increase 11.9	Increase 21.7
7	 Mexico	45.0 million	41.3 million	Increase 9.0	Increase 5.1
8	 Thailand	39.8 million	38.2 million	Increase 4.3	Increase 7.3
9	 Germany	39.6 million	38.9 million	Increase 1.8	Increase 3.8
10	 United Kingdom	39.4 million	38.7 million	Increase 1.9	Decrease 2.2
Africa
In 2019, there were 69.9 million international tourist arrivals to Africa (excluding Egypt and Libya), an increase of 2.4% from 2018. In 2019, the top ten African destinations were:

Rank	Destination	International
tourist
arrivals
(2019)	International
tourist
arrivals
(2018)	Change
(2018 to
2019)
(%)	Change
(2017 to
2018)
(%)
1	 Egypt	13.0 million	11.3 million	Increase 14.8	Increase 36.8
2	 Morocco	12.9 million	12.3 million	Increase 5.2	Increase 8.3
3	 South Africa	10.2 million	10.5 million	Decrease 2.3	Increase 1.8
4	 Tunisia	9.4 million	8.3 million	Increase 13.6	Increase 17.7
5	 Algeria	2.4 million	2.7 million	Decrease 10.8	Increase 8.4
6	 Zimbabwe	2.3 million	2.6 million	Decrease 10.8	Increase 5.9
7	 Mozambique	2.0 million	2.7 million	Decrease 26.4	Increase 89.6
8	 Ivory Coast	–	2.0 million	-	Increase 9.2
9	 Kenya	–	1.9 million	-	Increase 15.4
10	 Botswana	–	1.7 million	-	Increase 2.0
Note: Egypt and Libya are classified under "Middle East" in the UNWTO.
Americas
In 2019, there were 219.1 million international tourist arrivals to the Americas, an increase of 1.5%. In 2019, the top ten destinations were:

Rank	Destination	International
tourist
arrivals
(2019)	International
tourist
arrivals
(2018)	Change
(2018 to
2019)
(%)	Change
(2017 to
2018)
(%)
1	 United States	79.3 million	79.7 million	Decrease 0.6	Increase 3.3
2	 Mexico	45.0 million	41.3 million	Increase 9.0	Increase 5.1
3	 Canada	22.1 million	21.1 million	Increase 4.8	Increase 1.2
4	 Argentina	7.4 million	6.9 million	Increase 6.6	Increase 3.4
5	 Dominican Republic	6.4 million	6.6 million	Decrease 1.9	Increase 6.2
6	 Brazil	6.4 million	6.6 million	Decrease 4.1	Increase 0.5
7	 Chile	4.5 million	5.7 million	Decrease 21.1	Decrease 11.3
8	 Peru	4.4 million	4.4 million	Decrease 1.1	Increase 9.6
9	 Cuba	4.3 million	4.7 million	Decrease 9.0	Increase 2.0
10	 Colombia	4.2 million	4.0 million	Increase 3.4	Increase 10.7
Asia and the Pacific
In 2019, there were 360.7 million international tourist arrivals to Asia-Pacific, an increase of 4.1% over 2018. In 2019, the top ten destinations were:

Rank	Destination	International
tourist
arrivals
(2019)	International
tourist
arrivals
(2018)	Change
(2018 to
2019)
(%)	Change
(2017 to
2018)
(%)
1	 China	65.7 million	62.9 million	Increase 4.5	Increase 3.6
2	 Thailand	39.8 million	38.2 million	Increase 4.3	Increase 7.3
3	 Japan	32.2 million	31.2 million	Increase 3.2	Increase 8.7
4	 Malaysia	26.1 million	25.8 million	Increase 1.0	Decrease 0.4
5	 Hong Kong	23.8 million	29.3 million	Decrease 18.8	Increase 4.9
6	 Macau	18.6 million	18.5 million	Increase 0.8	Increase 7.2
7	 Vietnam	18.0 million	15.5 million	Increase 16.2	Increase 19.9
8	 India	17.9 million	17.4 million	Increase 2.8	Increase 12.1
9	 South Korea	17.5 million	15.3 million	Increase 14.0	Increase 15.1
10	 Indonesia	15.5 million	13.4 million	Increase 15.4	Increase 3.5
Europe
In 2019, there were 744.3 million international tourist arrivals to Europe, an increase of 3.9% over 2017. In 2019, the top ten destinations were:

Rank	Destination	International
tourist
arrivals
(2019)	International
tourist
arrivals
(2018)	Change
(2018 to
2019)
(%)	Change
(2017 to
2018)
(%)
1	 France	–	89.4 million	-	Increase 2.9
2	 Spain	83.7 million	82.8 million	Increase 1.1	Increase 1.1
3	 Italy	64.5 million	61.6 million	Increase 4.8	Increase 5.7
4	 Turkey	51.2 million	45.8 million	Increase 11.9	Increase 21.7
5	 Germany	39.6 million	38.9 million	Increase 1.8	Increase 3.8
6	 United Kingdom	39.4 million	38.7 million	Increase 1.9	Decrease 2.2
7	 Austria	31.9 million	30.8 million	Increase 3.5	Increase 4.6
8	 Greece	31.3 million	30.1 million	Increase 4.1	Increase 10.8
9	 Portugal	24.6 million	22.8 million	Increase 7.9	Increase 7.5
10	 Russia	24.4 million	24.6 million	Decrease 0.5	Increase 0.7
Middle East
In 2019, there were 61.4 million international tourist arrivals to the Middle East (excluding Iran and Israel), an increase of 2.1% over 2018. In 2019, the top ten destinations were:

Rank	Destination	International
tourist
arrivals
(2019)	International
tourist
arrivals
(2018)	Change
(2018 to
2019)
(%)	Change
(2017 to
2018)
(%)
1	 Saudi Arabia	17.5 million	15.5 million	Increase 13.0	Decrease 3.7
2	 United Arab Emirates	16.7 million	15.9 million	Increase 5.1	Increase 0.8
3	 Egypt	13.0 million	11.3 million	Increase 14.8	Increase 36.8
4	 Iran	9.1 million	7.3 million	Increase 24.4	Increase 49.9
5	 Israel	4.6 million	4.1 million	Increase 10.5	Increase 14.1
6	 Jordan	4.5 million	4.2 million	Increase 8.1	Increase 8.0
7	 Bahrain	3.8 million	4.4 million	Decrease 11.8	Decrease 0.2
8	 Oman	2.5 million	2.3 million	Increase 8.6	Decrease 0.6
9	 Qatar	2.1 million	1.8 million	Increase 17.4	Decrease 19.4
10	 Lebanon	1.9 million	2.0 million	Decrease 1.4	Increase 5.8
Note: Iran is classified as part of "South Asia" in the UNWTO.
Israel is classified as part of "Southern/Medit.Europe" in the UNWTO.</think>
Egypt - 13.0 million
Morocco - 12.9 million
South Africa - 10.2 million
Tunisia - 9.4 million
Algeria - 2.4 million
Zimbabwe - 2.3 million
Mozambique - 2.0 million
Ivory Coast - –
Kenya - –
Botswana - –