How to map user readable uppercase 'Attributes' for models in tabular Given steps with lowercase rails model attributes

gistfile1.txt

Background:
  Given the following set of activites exist
    | Activity                        | Weather |
    | Got to the Weston Super Mare    | Sunny   |
    | Visit Sea Life Center           | Raining |
    | Visit West Midlands Safari Park | Sunny   |
    | Visit Madame Tussauds           | Raining | 

Scenario: Suggesting a set of sunny activities
  When I state that Saturday's weather will be "Sunny"
  Then I will be presented with a list of sunny activities


Given(/^the following set of activites exist$/) do |table|
  table.hashes.each do |attributes|
    FactoryGirl.create(:thing, attributes)
  end
end

Gives error:

Given the following set of activites exist # features/step_definitions/steps.rb:1
      | Activity                        | Weather |
      | Got to the Weston Super Mare    | Sunny   |
      | Visit Sea Life Center           | Raining |
      | Visit West Midlands Safari Park | Sunny   |
      | Visit Madame Tussauds           | Raining |
      undefined method `Activity=' for #<Thing:0x007fe177271810> (NoMethodError)