mysql - Search for field contents contained in other records -

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i have list table having on 200,000 rows city column. assume contains following data: 

rowid    city  1        toronto  2        milton 3        hamilton 4        delhi 5        new delhi  6        markham

i want find records city contained in row, e.g. milton (row 2) contained in hamilton (row 3) , delhi (row 4) contained in new delhi (row 5). expect following output:

rowid   city   rowid2   city2 2       milton   3      hamilton 4       delhi    5      new delhi

can single query output looking for? thanks.

assume table name 'cities'. following sql query should work:

select   c2.rowid, c2.city, c1.rowid, c1.city   cities c1 inner join   cities c2     on instr(c1.city,c2.city)     , c1.rowid != c2.rowid

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