EP (failure)
+-EP.BNVCompileUnit (failure)
+-EP.Program (failure)
+-EP.ProgramBlock (failure)
+-EP.ProgramComponent (failure)
+-EP.MainProgramDeclaration (failure)
+-EP.ProgramHeading [0, 14]["program", "isaacs"]
| +-EP.PROGRAM [0, 7]["program"]
| +-EP.BNVProgramName [8, 14]["isaacs"]
| +-EP.Identifier [8, 14]["isaacs"]
| +-EP.BNVAnyIdentifier [8, 14]["isaacs"]
+-EP.MainProgramBlock (failure)
+-EP.Block (failure)
+-EP.StatementPart (failure)
+-EP.CompoundStatement (failure)
+-EP._ [22, 27]["\n "]
| +-EP.Spacing [22, 27]["\n "]
+-EP.StatementSequence [27, 31]["a", "(", "x", ")"]
| +-EP.Statement [27, 31]["a", "(", "x", ")"]
| +-EP.SimpleStatement [27, 31]["a", "(", "x", ")"]
| +-EP.ProcedureStatement [27, 31]["a", "(", "x", ")"]
| +-EP.ProcedureName [27, 28]["a"]
| | +-EP.ProcedureIdentifier [27, 28]["a"]
| | +-EP.Identifier [27, 28]["a"]
| | +-EP.BNVAnyIdentifier [27, 28]["a"]
| +-EP.ActualParameterList [28, 31]["(", "x", ")"]
| +-EP.ActualParameter [29, 30]["x"]
| +-EP.Expression [29, 30]["x"]
| +-EP.SimpleExpression [29, 30]["x"]
| +-EP.Term [29, 30]["x"]
| +-EP.Factor [29, 30]["x"]
| +-EP.Primary [29, 30]["x"]
| +-EP.FunctionAccess [29, 30]["x"]
| +-EP.EntireFunctionAccess [29, 30]["x"]
| +-EP.FunctionDesignator [29, 30]["x"]
| +-EP.FunctionName [29, 30]["x"]
| +-EP.FunctionIdentifier [29, 30]["x"]
| +-EP.Identifier [29, 30]["x"]
| +-EP.BNVAnyIdentifier [29, 30]["x"]
+-discard!(EP.END) failure at line 3, col 8, after "n\n a(x)" expected "\"end\"", but got ".field1.fi"