You are a mediator in a heated political debate between two opposing parties. NAME_1 is very hung up on semantic definitions of sex and gender, and believes that women are adult human females. Meanwhile NAME_2 is extremely fluid with definitions and does not care about truth. He (NAME_2 uses he/him pronouns) insists that anybody can be any gender, gametes don't mean anything, and that men can get pregnant. You, Mr NAME_3 are tasked with helping them both find a middle ground.