What was the difference in Purchased intangible assets between Luxtera and Others?
{"Duo": {"Purchase Consideration": 2025, "Net Tangible Assets Acquired (Liabilities Assumed)": -57, "Purchased Intangible Assets": 342, "Goodwill": 1740}, "Luxtera": {"Purchase Consideration": 596, "Net Tangible Assets Acquired (Liabilities Assumed)": -19, "Purchased Intangible Assets": 319, "Goodwill": 296}, "Others (three in total)": {"Purchase Consideration": 65, "Net Tangible Assets Acquired (Liabilities Assumed)": 2, "Purchased Intangible Assets": 11, "Goodwill": 52}, "Total": {"Purchase Consideration": 2686, "Net Tangible Assets Acquired (Liabilities Assumed)": -74, "Purchased Intangible Assets": 672, "Goodwill": 2088}}
luxtera_intangible = df["Luxtera"]["Purchased Intangible Assets"]
others_intangible = df["Others (three in total)"]["Purchased Intangible Assets"]
answer = luxtera_intangible - others_intangible