Solve the following sql problem:
What is the task of the method that is in the Czech language?

Schema:
SCHEMA:
- Table: Method
  - Column: Id
    - Samples: [1, 2, 3, 4, 5]
  - Column: Name
    - Samples: [HtmlSharp.HtmlParser.Feed, HtmlSharp.HtmlParser.ParseDoctypeElement, IQ.Data.DbQueryProvider.GetQueryText, IQ.Data.DbQueryProvider.Execute, IQ.Data.DbQueryProvider.GetExecutionPlan]
  - Column: FullComment
    - Samples: [Feeds data into the parser,  interneral -- scan past <!ELEMENT declarations,  <summary>
        /// Converts the query expression into text that co...,  <summary>
        /// Execute the query expression (does translation,...,  <summary>
        /// Convert the query expression into an execution ... (truncated)]
  - Column: Summary
    - Samples: [None, None, Converts the query expression into text that corresponds to the comman..., Execute the query expression , Convert the query expression into an execution plan (truncated)]
  - Column: ApiCalls
    - Samples: [System.String.IsNullOrEmpty HtmlSharp.HtmlParser.GoAhead HtmlSharp.Htm..., HtmlSharp.HtmlParser.ScanName System.Collections.Generic.KeyValuePair...., IQ.Data.DbQueryProvider.Translate IQ.Data.QueryLanguage.Format IQ.Data..., IQ.Data.DbQueryProvider.GetExecutionPlan System.Linq.Expressions.Lambd..., System.Linq.Expressions.LambdaExpression.Body IQ.Data.DbQueryProvider.... (truncated)]
  - Column: CommentIsXml
    - Samples: [0, 0, 1, 1, 1]
  - Column: SampledAt
    - Samples: [636430963695654788, 636430963695709898, 636430963721734366, 636430963721804459, 636430963721804459]
  - Column: SolutionId
    - Samples: [1, 1, 2, 2, 2]
  - Column: Lang
    - Samples: [None, None, en, fr, en]
  - Column: NameTokenized
    - Samples: [html parser feed, html parser parse doctype element, db query provider get query text, db query provider execute, db query provider get execution plan]
- Table: MethodParameter
  - Column: Id
    - Samples: [1, 2, 3, 4, 5]
  - Column: MethodId
    - Samples: [1, 2, 2, 3, 3]
  - Column: Type
    - Samples: [System.String, System.Int32, System.Int32, System.Linq.Expressions.Expression, IQ.Data.SelectExpression]
  - Column: Name
    - Samples: [data, i, declstartpos, expression, s]
- Table: Repo
  - Column: Id
    - Samples: [1, 2, 3, 4, 5]
  - Column: Url
    - Samples: [https://github.com/wallerdev/htmlsharp.git, https://github.com/unclebob/nslim.git, https://github.com/maravillas/linq-to-delicious.git, https://github.com/mauriciodeamorim/tdd.encontro2.git, https://github.com/aroder/heatmap.git]
  - Column: Stars
    - Samples: [14, 6, 6, 3, 1]
  - Column: Forks
    - Samples: [2, 3, 0, 0, 0]
  - Column: Watchers
    - Samples: [14, 6, 6, 3, 1]
  - Column: ProcessedTime
    - Samples: [636430963247108053, 636472436323838240, 636430963280029575, 636430963299356346, 636472436346806990]
- Table: Solution
  - Column: Id
    - Samples: [1, 2, 3, 4, 5]
  - Column: RepoId
    - Samples: [1, 3, 4, 5, 6]
  - Column: Path
    - Samples: [wallerdev_htmlsharp\HtmlSharp.sln, maravillas_linq-to-delicious\tasty.sln, mauriciodeamorim_tdd.encontro2\Tdd.Encontro2.sln, aroder_heatmap\CenStatsHeatMap.sln, managedfusion_managedfusion\ManagedFusion.sln]
  - Column: ProcessedTime
    - Samples: [636430963695642191, 636430963721734366, 636430963735704849, 636430963750457674, 636430963775379234]
  - Column: WasCompiled
    - Samples: [1, 1, 1, 0, 1]

SELECT DISTINCT SUBSTR(SUBSTR(Name, INSTR(Name, '.') + 1), 1, INSTR(SUBSTR(Name, INSTR(Name, '.') + 1), '.') - 1) task FROM Method WHERE Lang = 'cs'