Goal: I want to share a beautiful sushi photo with my mother on Gmail at claire.sato@gmail.com.
Steps:
action: action_type: click
step_instruction: Click on the share tab that is at the bottom left corner of the screen.
action: action_type: click
step_instruction: Click on the Gmail option 
action: action_type: input_text
text: claire.sato@gmail.com
step_instruction: Enter the recipient email as claire.sato@gmail.com
action: action_type: click
step_instruction: Click on the send icon at the top of the screen.