Goal: I want to delete some unnecessary photos from my gallery  
Steps:
action: action_type: navigate_back
step_instruction: Go back to home page
action: action_type: scroll
direction: down
step_instruction: swipe up for more photos
action: action_type: scroll
direction: down
step_instruction: swipe up for more photos
action: action_type: click
step_instruction: click on the Jul 5 photo
action: action_type: click
step_instruction: click on the delete button
action: action_type: click
step_instruction: click on the move to trash