reinstitute_grain_dole_decision_effect

reinstitute_grain_dole_decision_effect = {
	if = {
		limit = {
			NOT = { capital_county = { has_variable = unlocked_grain_dole } }
		}
		custom_tooltip = {
			text = half_price_chariot_race_tooltip
			add_character_flag = half_price_chariot_race_flag
		}
	}
	every_county_in_region = {
		region = custom_roman_aegyptus
		limit = {
			any_county_province = {
				has_building_or_higher = cereal_fields_05
			}
		}
		add_county_modifier = {
			modifier = grain_providers_county_modifier
			years = 25
		}
	}
	capital_county = {
		add_county_modifier = {
			modifier = panem_et_circenses_county_modifier
			years = 25
		}
	}
	add_legitimacy = medium_legitimacy_gain
	if = {
		limit = {
			NOT = { capital_county = { has_variable = unlocked_grain_dole } }
		}
		add_prestige = {
			value = massive_prestige_gain
			multiply = 3
		}
		change_influence = {
			value = massive_influence_gain
			multiply = 3
		}
		capital_county = { set_variable = unlocked_grain_dole }
	}
	else = {
		add_prestige = massive_prestige_gain
		change_influence = massive_influence_gain
	}
}

As written in game/common/scripted_effects/00_major_decisions_scripted_effects_3.txt.