Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Ancient Astronomy of Easter Island: Aldebaran and the Pleiades   There is a good cause to assert that the Easter Islanders constantly watched
Aldebaran and the Pleiades in the past. The Russian scholar Irina K. Fedorova
and the American scholar Georgia Lee were the first who contributed
significantly to the archaeoastronomical studies of these celestial bodies. I
have decoded the Mataveri calendar completely. The ceremonial platform Hekii 2
was oriented on Aldebaran and nearby stars. The disappearance of the Pleiades
during the dawn period in the north at the end of August could be an important
mark before the arrival of sooty terns and before the elections of the next
bird-man. The calculated dates of several solar eclipses have been used for
composing the chronology of Easter Island from 1771 till 1867 A.D.

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The categories of this paper are: math
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an