Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A note on backreacting flavors from calibrated geometry   One of the main problems in the search for string duals with backreacting,
smeared flavors is the construction of a suitable source density. We review how
this issue may be addressed using generalized calibrated geometry.

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The categories of this paper are: physics
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The categories of this paper are: hep-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: nlin
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The categories of this paper are: gr-qc
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The categories of this paper are: eess
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The categories of this paper are: ao-sci
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The categories of this paper are: cond-mat
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
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The categories of this paper are: cs