input: Please answer the following: What is the missing first step of the following process: - The oxygen travels to the lungs through the windpipe - The air sacs in the lungs send the oxygen into the blood stream - The carbon dioxide in the blood stream is transferred to the air sacs - The lungs expel through the nose or mouth back into the environment.
++++++++++
output: You breathe oxygen into your body through the nose or mouth

input: Please answer the following: What is the missing first step of the following process: - The food is chewed - Saliva mixes with the food and starts breaking it down - The chewed food travels down the esophagus to the stomach - The stomach secretes acid - Grinds and mixes the food - The food moves to the small intestine - The small intestine uses enzymes to further break down the food - The food passes into the colon - The food is expelled from the body.
++++++++++
output: Food is taken into the mouth

input: Please answer the following: What is the missing first step of the following process: - Preheat the oven to desired baking temperature - Grease your preferred cake pan with crisco or butter or other non-stick spray - Add eggs and vegetable oil to the dry ingredients - Stir or whisk until all the dry flour has been absorbed - Pour the batter into the greased cake pan - Place cake pan into the oven for the required time - When a toothpick inserted into the cake comes out clean, the cake is done baking -
++++++++++
output: To bake a cake you first need to gather your ingredients

input: Please answer the following: What is the missing first step of the following process: - Rain falls - Water is in the area of high elevation - The water creates a stream - The stream moves towards lower elevation - The stream continues along the same path for a long time - The soil and rocks erode where the stream touches them - The stream moves deeper into the soil - The stream is smaller than the eroded area.
++++++++++
output:
An area is at a higher elevation than the surrounding area