context: Swim has a sub-event of drown. Dice be toss has a sub-event of use index card. Someone throw something has a sub-event of die. Ski does not have a sub-event of want to learn more. Ski has a sub-event of have fun. Ski does not have a sub-event of change your way of life. Have fun has a sub-event of swim. Someone throw something has a sub-event of use index card. Drown is a bad way to die. Drown has a sub-event of die.
text: Swim does not have a sub-event of drown.