Simple categories matching incoming:

• fluid,
• signal,
• chairman,
• weather,
• ceo,
• information,
• storm,
• cable,
• line,
• gas,
• substance,

Members with property incoming:

• ground_beacon,
• bob_iger,
• pesticide,
• Paul_Otellini,
• rhythm,
• tornado,
• solvent,
• electrical_cable,
• Ben_Bernanke,
• tropical_storm,
• mike_zafirovski,
• training_signal,
• Robert_Iger,
• methane,
• snow,
• family_communications,
• alcohol,
• pitch,
• data_frame,
• current_input,
• methanol,
• severe_thunderstorm,
• melody,
• http_request,
• contact_input,
• stress,
• cable,
• metal_enclosure,
• drug,
• human_speech,
• formaldehyde,
• air,
• hurricane,